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  • 1.
    Ahlqvist, Nicolin
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Rydh, Mathilda
    Mälardalen University, School of Innovation, Design and Engineering.
    Valideringssystem för diskmaskin inom vården2015Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Detta arbete har tagit upp frågan om hur ett valideringssystem inom vården skulle kunna fungera på bästa sätt samt dess design

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  • 2.
    Ahvenlampi Svensson, Amanda
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Exploring challenges in a verification process - when adapting production processes to new environmental requirements2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The requirements on the products and production processes within the manufacturing industry are continuously increasing according to environmental standards. The new requirements are coming from a growing awareness of what our planet can provide for example by the global challenge of climate change. The industry needs to reduce energy consumption and waste to meet the upcoming requirements.

    One of the processes with high environmental impact in a discrete manufacturing industry is the paint shop. Surface treatment is also of great importance to maintain a high quality product. In scientific literature, technological risk is one of the barriers in implementing environmental conscious manufacturing. Therefore the area of sustainable operations management needs building bridges with other functions and disciplines such as economics, strategies and behavioral sciences in order to manage the transitions. The supply of competence around paint shops today is usually provided by suppliers and other sources within the industry and to make the collaboration to work is essential. In this process of collaboration with external sources, substantial measurements are required to maintain the desirable quality. In order to ensure the competence of testing the quality eventuate when switching technology at a pre-treatment line, this report sets out to explore what the challenges to be taken into consideration are when to assure the product- and- process quality. To respond to this question, a multiple case study is conducted during spring 2016 where the phenomenon to study is the change process and the unit of analysis is the challenges that can be faced during the verification process. The case studied is automotive companies located in Sweden which are producing components for heavy duty vehicles. Data collection is performed by studying documents, participatory observations and semi-structured interviews. The results will give insights to academia on what challenges that are occurring during the verification process of implementing new and cleaner technologies. The conclusions are drawn upon the literature and the empirical results. The managerial implications are to increase the awareness of any potential barriers in the verification process in order to be prepared for managing the technological change process.

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  • 3.
    Andersson, Anna
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Bousquet, Anna
    Mälardalen University, School of Innovation, Design and Engineering.
    Bestickställ för ultraljudstvätt2015Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This was a product development project performed for AB Gense, a cutlery manufacturer in Eskilstuna. Between different operations during production the work material needs to be cleaned in an alkaline ultrasonic cleaner. The work materials are placed in a cutlery basket where they are in contact with each other. Due to this not all work materials are clean enough after the cleaning which leads to extra work for the operators. The purpose of this project was to develop a new cutlery basket in order to achieve a higher number of clean work materials.

     

    The main focus of the project was to develop a cutlery basket suitable for use in an ultrasonic cleaner. The project was based on the principals of the product development process. Interviews and observations were used in order to gather information about the problem. A number of concepts was developed and evaluated theoretically as well as practically together with the company.

     

    One concept was selected for further development. Plastic was chosen as material for the concept and 3D-printing for manufacturing since only a few baskets were to be produced.

     

    The result was a concept of a cutlery basket consisting of a base with removable supports for the work materials. The support comes in two different heights and has dents on the top in order to separate the work materials. A FEM-analysis was made in order to analyze the impact of the loads on the cutlery basket.

     

    It is hard to estimate to which degree the purpose was fulfilled due to the fact that no working prototype has been produced and tested. However the cutlery basket will probably give better results since the work materials are separated during the cleaning process. 

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  • 4.
    Anmar, Shawi
    Mälardalen University, School of Innovation, Design and Engineering.
    Datorbord till Apples datorer2011Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
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  • 5.
    Arayapan, Khanittha
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Warunyuwong, Piyanut
    Mälardalen University, School of Innovation, Design and Engineering.
    Logistics Optimization: Application of Optimization Modeling in Inbound Logistics2009Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    To be a market leader, low cost and responsiveness are the key success factors. Logistics activities create high cost reducing competitiveness of the company, especially for the remote production base. Thus, logistics activities which are delivery planning, freight forwarder and delivery mode selection must be optimized. The focusing area of this paper is inbound logistics due to its big proportion in the total cost and involvement with several stakeholders. The optimization theory and Microsoft Excel’s Solver is used to create the standard optimization tools since it is an efficient and user friendly program. The models are developed based on the supply chain management theory in order to achieve the lowest cost, responsiveness and shared objectives. 2 delivery planning optimization models, container loading for fixed slitting and loading pattern and container loading for pallet loaded material, are formulated. Also, delivery mode selection is constructed by using optimization concept to determine the best alternative. Furthermore, freight forwarder selection process is created by extending the use of the delivery mode selection model. The results express that safety stock, loading pattern, transport mode, and minimum order quantity (MOQ) significantly affect the total logistics cost. Including hidden costs, long transit time and delay penalties, leads freight forwarder selection process to become more realistic and reliable. Shorter processing time, ensured optimal solution, transparency increase and better communication are gained by using these optimization models. However, the proper boundaries must be defined carefully to gain the feasible solution.

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  • 6.
    Aslanidou, Ioanna
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Zimmerman, Nathan
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Pontika, Evangelia
    Aristotle Univ Thessaloniki, Dept Mech Engn, Thessaloniki, Greece.
    Kalfas, Anestis
    Aristotle Univ Thessaloniki, Dept Mech Engn, Thessaloniki, Greece.
    Kyprianidis, Konstantinos
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Reforming heat and power technology course structure using student feedback to enhance learning experience2021In: International Journal of Mechanical Engineering Education, ISSN 0306-4190, E-ISSN 2050-4586, Vol. 49, no 4, p. 410-434Article in journal (Refereed)
    Abstract [en]

    The main outcomes of an engineering course should be for the students to achieve the educational goals, enhance their problem solving capabilities and develop essential skills for their future career. In that context, it is important to understand what motivates the students and what helps them develop an engineering mindset. This paper discusses the improvement of a course with the use of student feedback to motivate students and help them develop essential skills. The purpose of the paper is to provide insight into how different aspects of the course are linked to the students’ growth. Different activities have been integrated in the course over the past years. The effect these have on the student motivation to follow the course and develop skills, knowledge and interest in the subject is discussed through the analysis of student performance, student feedback and the experience of the lecturers. The improvements in the course based on the student feedback were received positively by the students, whose learning experience improved, even though the workload of the course was high. Their motivation to successfully complete the course has also increased through the changes in the delivery of the course and the support by the teachers. The combination of student feedback and teacher experience is key for the improvement of a course, while ensuring that the students develop their engineering knowledge. Therefore, the teachers should strike a balance between helping the students find the solution and encouraging them to think on their own in order to develop essential skills. 

  • 7.
    Ballesteros, Joaquin
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Tudela, Alberto J.
    University of Malaga, Malaga, Spain.
    Caro-Romero, J. R.
    University of Malaga, Malaga, Spain.
    Urdiales, C.
    University of Malaga, Malaga, Spain.
    Weight-Bearing Estimation for Cane Users by Using Onboard Sensors2019In: Sensors, E-ISSN 1424-8220, Vol. 19, no 3Article in journal (Refereed)
    Abstract [en]

    Mobility is a fundamental requirement for a healthy, active lifestyle. Gait analysis is widely acknowledged as a clinically useful tool for identifying problems with mobility, as identifying abnormalities within the gait profile is essential to correct them via training, drugs, or surgical intervention. However, continuous gait analysis is difficult to achieve due to technical limitations, namely the need for specific hardware and constraints on time and test environment to acquire reliable data. Wearables may provide a solution if users carry them most of the time they are walking. We propose to add sensors to walking canes to assess user's mobility. Canes are frequently used by people who cannot completely support their own weight due to pain or balance issues. Furthermore, in absence of neurological disorders, the load on the cane is correlated with the user condition. Sensorized canes already exist, but often rely on expensive sensors and major device modifications are required. Thus, the number of potential users is severely limited. In this work, we propose an affordable module for load monitoring so that it can be widely used as a screening tool. The main advantages of our module are: (i) it can be deployed in any standard cane with minimal changes that do not affect ergonomics; (ii) it can be used every day, anywhere for long-term monitoring. We have validated our prototype with 10 different elderly volunteers that required a cane to walk, either for balance or partial weight bearing. Volunteers were asked to complete a 10 m test and, then, to move freely for an extra minute. The load peaks on the cane, corresponding to maximum support instants during the gait cycle, were measured while they moved. For validation, we calculated their gait speed using a chronometer during the 10 m test, as it is reportedly related to their condition. The correlation between speed (condition) and load results proves that our module provides meaningful information for screening. In conclusion, our module monitors support in a continuous, unsupervised, nonintrusive way during users' daily routines, plus only mechanical adjustment (cane height) is needed to change from one user to another.

  • 8.
    Baudin, Samuel
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Fredriksson, Marcus
    Mälardalen University, School of Innovation, Design and Engineering.
    Industrial look and feel – The combination of aesthetics and performance in production, a case study2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The increasing globalization of the market has rendered the competitive situation for companies worldwide more fierce than ever with order winners becoming order qualifiers and the demand continues to rise. Especially, the situation has become more complex for SME´s that are suppliers to large global companies. To ensure themselves that the suppliers are conforming to the high standards set by the large companies. In mediating the quality of the production as well as having a well-performing production, practitioners are using the term industrial look and feel to encapsulate a production that both deliver and looks the part. However, this term is loosely used, and a clear definition of it is missing, hence creating problems when the term industrial look and feel is used in production line design.

    In this study, the authors aim to investigate the possibilities of providing a clear definition of the term industrial look and feel and what it involves. Further, the authors want to investigate what are the important aspects to consider when designing a production line considering industrial look and feel. The study was directed by these three research questions:

    * How can Industrial Look and Feel be defined?

    * How does Industrial Look and Feel contribute to increased performance of a production line?

    * What is important to consider when designing a production line considering industrial look and feel in an HMLV environment?

    To answer the research questions a case study has been conducted at a company producing the robust data communication equipment and a literature review was conducted with the aim of understanding the concepts included in the term industrial look and feel.

    The study resulted in a definition of industrial look and feel, how industrial look and feel may contribute the production performance and important aspect to consider and include in the design of a production line considering industrial look and feel. Taking the newly defined concept of industrial look and feel into consideration, a concept assembly line was developed at the case study company.

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    Industrial look and feel – The combination of aesthetics and performance in production, a case study
  • 9.
    Bengtsson, Marcus
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Salonen, Antti
    Mälardalen University, School of Innovation, Design and Engineering.
    On the Need for Research on Holistic Maintenance2009In: CONDITION MONITORING AND DIAGNOSTIC ENGINEERING MANAGEMENT: Proceedings of the 22th international congress on Condition Monitoring and Diagnostic Engineering Manangement, Eibar: Fundacion Tekniker , 2009, p. 165-172Conference paper (Refereed)
    Abstract [en]

     

    Traditionally, research within maintenance has been viewed from an operations research and maintenance optimization perspective, based on the mathematical theory of reliability. Utilizing an analytical approach with mostly quantitative methods, renewal theory, reliability tests, failure rate estimates, fatigue life in materials, and so on, have been researched and analyzed [1, 2]. However, Dekker [3], for instance, points out that there are, in many areas, complaints about the gap between theory and practice. Thus, in order to help companies realizing a more efficient maintenance execution and benefit from the performed research, other research perspectives might be important as well.

    This paper argues for the need of having an applied systems approach when performing research on maintenance design and development. The purpose of having such a research approach is to bridge some of the gap between theory and practice when it comes to development of new innovative philosophies/methodologies/techniques and the implementation of these in industrial contexts. The paper is divided in a Section on introduction and a background to the issue, a Section on the need for research on holistic maintenance, and end with a Section of discussion, presenting some ideas on how to perform research on holistic maintenance and an introduction to the research group on 'Maintenance Development' at Mälardalen University, Sweden.

  • 10.
    Bestjak, Linnea
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Lindqvist, Cassandra
    Mälardalen University, School of Innovation, Design and Engineering.
    Assessment of How Digital Twin Can Be Utilized in Manufacturing Companies to Create Business Value2020Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Introduction

    The paradigm shift in manufacturing that Industry 4.0 brings forth with new advanced technologies and the rapid growth of sensing and controlling technologies enable further visualization and optimization that can contribute to achievingimproved decision-making in manufacturing. A significant new capability is the ability to construct a Digital Twinthat connects the physical and virtual space. However, there are still confusion and obscurity regarding what Digital Twinis and how it can becreated and then used to create value for the company. Therefor the purpose of the thesis is to examine how manufacturing companies can utilize the implementation of Digital Twinand assess Digital Twinin a shop-floor.

    ➢RQ1: How can DT be beneficial to increase business value in a manufacturing company?

    ➢RQ2: What changes need to be done in the shop-floor to implement Digital Twin?

    Methodology

    A literature review was conducted to provide previous researchand contextwithin the area of Digital Twin. A multiple-case studywas performed at three case companies to gain meaningful insight from a real-world perspective, semi-structured interviews, dialogs, and observations were conductedat the case companies. The analysis was then performed by examining similarities, and dissimilarities between theoretical and empirical data, as well as opportunities in theoretical findings that correspond with challenges in empirical findings.

    Frame of Reference

    The literature review increased the authors’ understanding of the research topic and gave context to the concept of Digital Twin. The review is mainly focused on the Digital Twintechnologyand how it is constructed, as well as the applicationsareas.

    Empirical Findings

    The empirical findings provide an overview of boththe current and future state of the case companies in relation to organizational, operational, and technological factors. Additionally, it provides a deeper understanding of how shop-floor management is designed at one of the case companies.

    Analysis

    The combination of the Frame of Reference and Empirical Findings contributewith important insight on the potential benefits that can be created through the utilizationof Digital Twin, as well as what is requiredin the shop-floor to enable implementation ofDigital Twin.

    Conclusions

    The value that can be created utilizing Digital Twinis outlinedand a clearer definition is proposed to avoid misunderstandings and confusion. Requirements that need to be achieved for a successful implementation arecovered as well. A future recommendation is measuring resources and effort in relation to the created value of a Digital Twin.

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  • 11.
    Björklund, Terese
    Mälardalen University, School of Innovation, Design and Engineering.
    Två börsnoterade industriföretag: Om och hur de använder sig av personalen som innovativ kraft2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Sammanfattning:

    Denna uppsats syftar till att undersöka om och hur stora industriföretag använder sig av personalen som en innovativ kraft. Olika teoretiker beskriver innovation på olika sätt. Bland annat så hävdar Parker och Kerrie (2003) att det är ett proaktivt beteende som leder till innovationer, och att det är tillvägagångssättet i sig som är en innovation. Drucker (2000) och Dobni (2005) tycks vara ense om att en innovation är ett tankesätt. Jag fann ett intresse i att undersöka hur mina valda företag tycks uppleva innovationer. Undersökningen har skett på två industriföretag med liknande förutsättningar och valet av företagen är delvis ett bekvämlighetsurval då personlig kontakt finns till ett av företagen. Empirin grundar sig utifrån djupintervjuer med personer i ledningsgruppen inom respektive företag. Efter en analys av båda företagen med koppling mellan teori och empiri tycks det finnas en viss begränsning i hur mycket företagen inom en industribransch finner intresse i att ta tillvara på personalen som en innovativ kraft. Ingen tydlig modell på hur företagen går tillväga med innovationer finns och företagen tycks uppleva innovationer mer som ett tankesätt, precis som Drucker (2000) och Dobni (2005) hävdar.

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  • 12.
    Borg, Johan
    et al.
    Dalarna Univ, Sch Hlth & Welf,Falun, Sweden..
    Gustafsson, Christine
    Mälardalen University, School of Health, Care and Social Welfare, Health and Welfare. Eskilstuna Municipal, Dept Hlth & Social Care, Eskilstuna, Sweden.
    Landerdahl Stridsberg, Sara
    Mälardalen University.
    Zander, Viktoria
    Mälardalen University, School of Health, Care and Social Welfare, Health and Welfare.
    Implementation of welfare technology: a state-of-the-art review of knowledge gaps and research needs2022In: Disability and Rehabilitation: Assistive Technology, ISSN 1748-3107, E-ISSN 1748-3115Article, review/survey (Refereed)
    Abstract [en]

    Purpose: To offer guidance for future welfare technology research, this review provides an overview of current knowledge gaps and research needs as reported in primary scientific studies addressing the implementation of welfare technology for older people, people with disabilities and informal caregivers.

    Materials and methods: This paper conducted a state-of-the-art review based on systematic searches in 11 databases followed by a descriptive qualitative analysis of 21 selected articles.

    Results: Knowledge gaps and research needs were identified concerning two categories: research designs and populations and focus of research. The articles reported needs for comparative studies, longitudinal studies, and demonstration trials as well as the development of co-design processes involving technology users. They also called for studies applying a social system theory approach, involving healthy and frail older adults, representative samples of users within and across countries, informal and formal caregivers, inter-and multidisciplinary teams, and care organizations. Moreover, there are reported needs for studies of acquirement, adoption and acceptance of welfare technology, attitudes, beliefs, and context related to welfare technology, caregiver perspectives on welfare technology, services to provide welfare technology and welfare technology itself.

    Conclusions: There are considerable knowledge gaps and research needs concerning the implementation of welfare technology. They relate not only to the research focus but also to research designs, a social system theory approach and study populations.

  • 13.
    Borgedahl, Malin
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Wennberg, Sune
    Mälardalen University, School of Innovation, Design and Engineering.
    Konstruktion av fästanordning till baklykta2022Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Volvo Construction Equipment (Volvo CE) is a part of Volvo Group and is among the biggest and leading manufacturers of construction equipment. The factory in Eskilstuna consists of approximately 2,100 employees. works with IT, sales, manufacturing transmissions, and axles. Volvo CE aims to increase the modularity across the company through its new modularity system called Common Architecture & Shared Technology (CAST). The ambition for CAST is that vehicles and construction equipment share components through standardization and modularization in the company. This bachelor thesis for innovation and product development aims to contribute to Volvos CAST-system for wheel loader.

    This study was conducted at Volvo electric facility for wheel loader and dumpers, at Volvo Technology Center in Eskilstuna. The purpose of the study is to develop a prototype of a module that could ease when Volvo changes tail light supplier. The module will be constructed out of sheet metal steel.

    Q1: How can the fastener be modularized to enable easier change of taillight supplier?

    The method for this study follows a traditional product development process with a detailed plan for the project through Gantt schedule, followed by different methods to generate concepts, choose concept, and construct a prototype. Unstructured interviews and semi-structured interviews were used to interview respondents at Volvo. The response was translated into customer needs and became the basis for the requirements specification. An external search for inspiration was made to find different ways to create a fastener. Chosen solution was the fastener that consisted of two parts.

    Concept generation resulted in 14 different concept models which were chosen through different screening method. Concept models were tested with consultation from relevant respondents at Volvo.The conclusion from this study showed difficulties to fulfill all customer needs when the fastener consists of many parts and small u-formed bends. There are risks that the surface treatment gets damaged and chipped from friction and vibration since the bottom- and top-plate is locked without any dampers. The tolerance for the fastener needs more work to ensure stability and make the fastener into a reliable product.

    Recommendation for future solutions is to integrate an easily modifiable fastener for the taillight into the construction of the wheel loader counterweight without affecting the counterweight’s function and aesthetics.

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  • 14.
    Bousquet, Anna
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Additiv tillverkning i metall och topologioptimering2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This thesis project was conducted as a case study at Scania CV, a manufacturer of trucks, buses and industrial and marine engines. The project aimed to investigate how topology optimization can be used to design end products for metal additive manufacturing (AM). The main research questions for the project was: How can topology optimization be used to design parts for metal additive manufacturing? Which gave rise to further research questions: Which parts are suitable for metal additive manufacturing? Which factors has to be considered when designing end products for metal additive manufacturing?

    The main benefits of additive manufacturing revealed in the literature were short lead time, possibility to manufacture complex geometries and consolidate multiple parts into a single part. The applications of metal additive manufacturing found in the literature included prototypes and end products as well as tools and spare parts. Small, complex geometries which are expensive to manufacture traditionally due to expensive tooling or low volumes are most likely to be suitable for metal additive manufacturing. Parts where trade-offs have to be made between manufacturing cost and performance could also be interesting to investigate for AM. The build size of the selected machine is a limiting factor when choosing parts and the build direction of the part, the need for support material during manufacturing and post processing are important to consider when designing parts for metal AM.

    The case study was performed based on Design for Additive Manufacturing (DFAM), a method for designing parts for AM. DFAM consists of deciding the specifications for the part, consolidate parts if possible, optimize the geometry of the part and make sure it is possible to manufacture. Two parts were optimized with topology optimization during the case study and the resulting geometries were imported to Catia in order to create CAD-models. The results from the case study showed it was possible to automatically create CAD-models based on the resulting geometries from topology optimization. However the automatic CAD-models are not suitable for manufacturing of end parts. But the case study indicates a weight reduction of about 30 % seems to be possible for topology optimization combined with AM even for parts already optimized for low weight but adapted for traditional manufacturing methods.

    Reducing the overall weight of trucks is important since the carrying capacity is important for customers when choosing vehicles for transportation and the gross vehicle weight is regulated by laws. This makes topology optimization and metal AM a highly interesting area for further investigation. As for now, small, complex parts which are traditionally expensive to manufacture are most likely to be profitable for manufacturing of end parts with metal AM.

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  • 15.
    Carlsson, Lovisa
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Jonsson, Geea
    Mälardalen University, School of Innovation, Design and Engineering.
    Utformning av bullerskydd för timmeravlastning till tåg2014Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
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    bullerskydd
  • 16.
    Chadda, Toni
    Mälardalen University, School of Innovation, Design and Engineering.
    Effektivisering av anbudsprocessen på Balfour Beatty Rail AB: Examensarbete, Innovativ produktion2010Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Anbudsprocessen på Balfour Beatty Rail i Västerås står inför en förändring då man vill införa ett nätverksbaserat kalkyleringssystem. Examensarbetets avsikt är att fokusera på anbudsprocessen med fokus på kalkylarbetet för att se hur dessa kan effektiviseras, samt för att se hur arbetet med kalkyleringen ska utformas på bästa sätt vid övergången till den nya plattformen.

    För att komma fram till hur anbudsprocessen ska kunna förbättras och designas på bästa möjliga sätt har detta bland annat lösts med hjälp av semistrukturerade intervjuer med alla som är involverade, för att få en insyn in i processen på en detaljnivå som tillåtit mig att modellera processens utgångsläge. Då företaget har utryckt en önskan om att ”skapa en ’lean’ anbudsprocess” har målet varit att förbättra processen med hjälp av den teori som är tillämplig (operations management, TQM, MIS, project management med mera) samt även att underbygga den med teori om lean enterprise och undersöka möjligheten för ett större åtagande av ett lean system.

    Efter undersökande av processen har en rad förbättringar föreslagits som till viss grad kunnats illustreras med en ny processkartläggning. För att optimera organisationens arbete med att producera anbud har det konstaterats att beslutsprocessen som leder fram till ett åtagande av produktion av anbud varit för lång och behöver effektiviseras genom att bland annat förbättra beslutsunderlaget innan ledningen träffas, att korta beslutsvägar och att ha möten minst två gånger i veckan. Inköpsavdelningen måste få en mer central roll i organisationen för att kunna utföra sitt arbete på ett så effektivt sätt som möjligt vilket hittills inte skett, nya åtgärder som rekommenderas är en centralisering av funktionerna för att möjliggöra ett totalkostnadsfokus för organisationen som helhet vid inköpsarbete, att alla förhandlingar med underleverantörer/underentreprenörer sköts av dem samt att man koordinerar strategiska inköpsbeslut med dem i ett tidigt skede samt kontinuerligt genom anbudsprocessen. Detta är ett led i arbetet för att grunda för långsiktighet.

    Kalkylarbetet kan förbättras på flera sätt för att frigöra den mer av den begränsade resurs som hittills satt gränsen för hur många anbud som kunnat produceras, den teknikkunniga kalkylatorn. Utöver detta så har jag föreslagit en rad åtgärder som förhoppningsvis kommer att leda till en förbättring av kvaliteten på anbuden. Kalkylstrukturerna i sig rekommenderas att företaget baserar på de industriella standardritningar som är vanligt förekommande vid kalkylarbete parallellt med ett kunskapslagringssystem som bygger på ständiga förbättringar och regelbunden kvalitetskontroll.

    På lång sikt så rekommenderas även att företaget ser över den uppsättning av programvaror som inte kan interagera på ett önskvärt sätt internt i företaget, vilket leder till en enorm resursförbrukning. Jag konstaterar också att det är ett stort åtagande att vilja anamma leansystemet, något som behöver undersökas på en ledningsnivå och som inbegriper hela organisationen.

    Nyckelord: anbud, kalkylering, järnvägsentreprenad, inköp, operations management, supply chain management, management information systems, knowledge management, kvalitet, ständiga förbättringar, project management, lean enterprise 

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  • 17.
    Dahlin, Maria
    Mälardalen University, School of Innovation, Design and Engineering.
    Tro, hopp och IT: Stora och små berättelser från ett förändringsprojekt2008Doctoral thesis, monograph (Other scientific)
    Abstract [en]

    Information technology (IT) is often assumed to be a prerequisite for the modern and developed organization, even though IT projects are described as problematic in practice. Starting with this paradox and using a narrative method, this study focuses on how, through their stories, employees of an organization ascribe different meanings to IT.

    The study, which entailed following an IT project at an insurance company, illustrates how the employees of the organization actively ascribe various and contradictory meanings to IT. On the one hand, preference is given to one grand narrative of IT as a tool in the service of the organization. This grand narrative ascribes the meaning of achieving management, control, and change, which is supposed to help the organization on its way toward a more successful future. Great responsibility is transferred to the technology for attaining the desired impact in the organization, which can backfire, especially against project management as they are hit with demands to fulfill the expectations for IT. On the other hand, employees wrestle to control the project, which they describe as unwieldy and unmanageable. The desired management, control, and change are described as elusive.

    The IT project has in this way come to be developed in a field of tension between contradictory meanings, where problems and solutions are constructed over time. The employees thus become, to an extent, victims of the meanings they have reproduced, something that can be described as double-edged power. The employees who were the keenest advocates of IT are also those who have the greatest difficulty accepting the failure of the technology to live up to expectations. In parallel, the study illustrates the employees’ opportunities to actively engage themselves in storytelling that complement and challenge the dominating meanings in the organization.

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  • 18.
    Dahlin, Peter
    Mälardalen University, School of Business.
    Turbulence in Business Networks: A Longitudinal Study of Mergers, Acquisitions and Bankruptcies Involving Swedish IT-companies2007Doctoral thesis, monograph (Other scientific)
    Abstract [en]

    The end of the twentieth centry, and the beginning of the twenty-first, was a revolving period with many mergers, acquisitions and bankruptcies among Swedish IT-companies. Such events are likely to affect more than just the companies directly involved, i.e. the bankrupt and consolidating parties, and this thesis considers the contextual embeddedness of mergers, acquisitions and bankruptcies by studying them in a business network setting.

    The primary aim of this thesis is to further the understanding of business network change and its underlying dynamics. A business network is a conceptual description of the interrelatedness of companies, which makes them problematic to describe and understand. This thesis suggests a force-based approach to business network change, which focuses on the forces underlying the change rather than the actual alterations of the business network. The suggested approach emphasizes the change and enables an exploration and description of business network change based on its underlying forces, linked to form a change sequence. The events that occur and the forces they give rise to can be used to describe the character of such business network change sequences.

    To enable a study of a change sequence within the Swedish IT-related business network, this thesis will use a technique designed to gather information about events and parts of the business network structure by systematizing data from news items describing mergers, acquisitions and bankruptcies involving Swedish IT-companies during the years 1994-2003. This data structuration technique enables a longitudinal and retrospective study of a business network change sequence. The analysis indicates a high possibility of inter-linkages between mergers, acquisitions and bankruptcies involving Swedish IT-companies, and describes a business network change sequence with high intensity and wide extension, which is the type of business network change with the highest potential impact, here referred to as ‘turbulence in business networks’.

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  • 19.
    Ekblad, Andreas
    Mälardalen University, School of Innovation, Design and Engineering.
    Utveckling av slangrulle för effektivare produktion2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This is a master thesis in product and process development at Mälardalens university, 30 credits corresponding to 20 weeks. Manovi Varberg AB has under its own brand, an electrically powered hose reel for industrial environments. The design is outdated and there are no active sales. This thesis is aimed at modernizing and improving the product, for more efficient production, without any specific requirements of how this should be solved. Through discussion, the aim was to reduce production time and cost by 20%. It was from the beginning a wish to use Magnelis coated metal plates (to be chosen later) instead of the powder coated and stainless-steel plates used today. 

    After studying the present design and an old draft on how the chassis could be constructed, the work began with a modularization that does not have the need for welding, as opposed to today’s design; stainless metal threaded rods, inserted into pipes were screwed together instead. When this was modelled and simulated in Solidworks and showed positive results, the next step was to find a solution to bind all the components together, from the inlet to the electrical engine, without changing the slip clutch. Neither has any electronics nor connections for in- and outlet been modified.

    Several components were identified that needed to have varying lengths. The drum with its rods was completely exchanged for standard aluminium profiles, yielding lower weight and more efficient production. The major axis (with the flow path) was shortened, and extension modules was created.

    An approximation was made to determine how much load the current model would withstand until breakage. This load was then increased with the same percentual amount as the new largest model was broadened, which amounted to 408 N per side of the chassis. After minor modifications of the design, the highest material strain was 275 MPa. With a predetermined safety factor of 1,2 the required yield point was set to 330 MPa. According to the manufacturer of Magnelis, the steel plates S350GD is a good candidate, as it meets the requirements, comes with the coating and is a high-volume stock product. This steel is recommended to use in this thesis. 

    The workshop manager at Manovi, with 20 years of experience, made a rough estimate on production time and cost, with the content of this thesis as basis, and found that both can be reduced by about 60% and 30% respectively, as a direct consequence of the modular design, the replacement of at least two of the older models and the change of materials. The weight of the product was also reduced 13-21%, depending on model.

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  • 20.
    Ekman, Daniel
    Mälardalen University, Department of Innovation, Design and Product Development.
    2007Independent thesis Basic level (degree of Bachelor), 20 points / 30 hpStudent thesis
    Abstract [sv]

    Datum:

    10 maj 2007

    Uppsatsnivå:

    C-uppsats i Industridesign, Kt2130 – Innovativ design, 20 poäng

    Författare:

    Daniel Ekman

    Kungsgatan 24A

    632 20 Eskilstuna

    073 – 952 79 06

    Titel:

    iPower – Spisvakten

    Bakgrund:

    Under ett studiebesök på Hjälpmedelsinstitutet fick jag insikt om olika problem med äldres kvarboende. Ett av de största problemen är brand-risken vid användning av spisen. En person med ett kognitivt funk-tionshinder kan börja koka vatten i en kastrull och gå där ifrån för att göra något annat medans vattnet kokar och helt glömma bort kastrullen. Varvid en brand kan uppstå som för med sig stora personliga och ekonomiska lidanden. Ett hjälpmedel för detta är en så kallad spisvakt eller timer. De fungerar genom att de bryter strömmen när faran för brand är nära.

    Syfte:

    I kursen Innovativ design har jag fått i uppdrag att vidareutveckla ett redan befintligt hjälpmedel. Valet föll på en spisvakt

    Tillvägagångssätt:

    Jag har valt att utgå från personer som har direktkontakt med proble-met. I det här fallet tre personer på tre olika företag/organisationer. Jag intervjuade en person inom varje företag/organisation. Jag har även ar-betat med litteraturstudier, utvärderat idéer och har slutligen tagit fram en design.

    Slutsats:

    Projektet har mynnat ut i en produkt som har en yttre design som tilltalar ögat och som klart och tydligt visar vad man skall göra och visar om produkten är påslagen. Användaren får en omedelbar feedback

    Nyckelord:

    Spisvakt, timer, kognitiva funktionshinder, brand, spis

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  • 21.
    Eriksson, Michael
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Munguia Chang, Douglas
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Testrigg för Tätning av Marin Transmission2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of the project is to create a concept proposal on a fundamental construction of a test equipment for Volvo Penta, where observations of their seals can be carried out. The current day problem is the difficulty to obtain consistent test results during test experiments in the oceans, due to the test environment never being identical to another. 

    The factors that affect the test environment was initially examined, where a list of those we considered having the biggest impact was created. In addition, discussion upon the requirements to obtain a functional equipment took place.

    A thorough information gathering process was carried out to establish a work foundation, of the theory necessary to assemble a construction. Material comparisons and mechanical strength simulations using FEA, was examined.

    The result became a theoretical test equipment that met the requirement specification, function analysis. The test equipment was presented in 3D modeled pictures using CAD.

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  • 22.
    Fernström, Rasmus
    Mälardalen University, School of Innovation, Design and Engineering.
    Vinkelgivare Koncept för konstruktion och montering2018Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
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  • 23.
    Flankegård, Filip
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Supplier Involvement in Product Development: A Supplier Perspective2022Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    This thesis explores the supplier perspective of supplier involvement in product development. Supplier involvement in product development is crucial for many companies to increase resource flexibility, access competence, reduce costs and time to market, among others. The existing literature focuses primarily on the customer perspective of supplier involvement, e.g., challenges and critical factors customers should consider. A few studies have focused on the supplier perspective. This research gap is addressed in this thesis by studying the conditions influencing the suppliers’ involvement in customers’ product development.

    This thesis explores two research questions: “What are the challenges suppliers experience when being involved in customers’ product development?”, and “What mitigating mechanisms and critical factors influence suppliers’ involvement in customers’ product development?”. The identified challenges originated [FF1] both from the customer and the supplier, indicating that both types of challenges must be focused on. The study also identified interdependencies between the challenges, implying that one challenge may lead to the occurrence of other challenges. The study suggests mitigating mechanisms to deal with the identified challenges. The identified critical factors influenced both the efficiency and effectiveness of supplier involvement in product development, e.g., lead-time, development cost, product quality, and cost. The study indicates that adopting a dual perspective and considering the challenges and critical factors for both the customer and the supplier, can support the involved supplier. The results build on findings from a case study including four SMEs.

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  • 24.
    Flankegård, Filip
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Granlund, Anna
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Johansson, Glenn
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. Lund University, Sweden.
    Supplier involvement in product development: Challenges and mitigating mechanisms from a supplier perspective2021In: Journal of engineering and technology management, ISSN 0923-4748, E-ISSN 1879-1719, Vol. 60, article id 101628Article in journal (Refereed)
    Abstract [en]

    This article explores challenges that suppliers experience when being involved in customers’ product development projects, and how these challenges can be mitigated. It presents a framework of supplier involvement in product development involving four dimensions: People-Process-Tools/Technology-Interaction. The framework consists of 24 challenges and associated mitigating mechanisms. The article concludes that suppliers must be aware of the challenges to ensure that proper internal capabilities are in place within their organizations. It also argues that customers should be aware of the challenges to provide best possible prerequisites for suppliers to ensure successful project outcomes. 

  • 25.
    Flankegård, Filip
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Johansson, Glenn
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. Jönköping University, Sweden .
    Granlund, Anna
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Challenges with Supplier Involvement in Product Development: A Supplier’s Perspective2019In: Proceedings of the International Conference on Engineering Design, ISSN 2220-4334, E-ISSN 2220-4342, Vol. 1, no 1, p. 2179-2188Article in journal (Refereed)
    Abstract [en]

    Studies of supplier involvement in product development have revealed potential benefits including faster time to market, reduced cost and increased quality. However, existing literature has mainly focused on the customer's perspective on advantages, disadvantages and factors to be considered when involving suppliers in product development. This paper addresses the supplier's perspective by answering following research question: How do challenges that originate from involvement in customer's product development affect a supplier? The question is answered through a single case study at a supplier that develops and manufacture products primary used in capital goods. Thirteen challenges are identified, classified as being internal or external, and categorised into five areas: (A) Customer requirements, (B) Information exchange between customer and supplier, (C) Product variety management, (D) Design- manufacturing integration and (E) Processes and work instructions. The findings suggest that internal challenges need as much attention as external ones that originate from the customer. Also, an indication of when the challenges affect the supplier during product development is presented.

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  • 26.
    Franzén, Tony
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Förbättring av oljecirkulationen i AHW-axlar2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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  • 27.
    Gebremeskel, Anteneh
    Mälardalen University, School of Innovation, Design and Engineering.
    New Service Development: Energy Efficiency Consultancy Service2011Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    For a longer period of time, manufacturing was the core business activity and hence service has gained lesser attention. However, a time came when manufacturers faced a huge challenge to stay profitable which apparently gave service to get more attention. The reason to this can be classified in to three categories: economic reasons, customer satisfaction and competitive advantage (Oliva et al., 2003). Understanding this, Volvo Group has set high target for revenues from soft products including service. In order to achieve this it is necessary to expand existing service offerings and explore more new service offerings. As part of this goal, Volvo Technology has been working on several projects. One of the projects which are closely related to this thesis is the

    Hauler Development Service (HDS) which started in 2008 for the trucking (Hauling) industry. HDS has two versions; HDS Green Field and HDS Efficiency and Effectiveness. HDS Green field focuses on starting up new road transport operations and establish business processes including system support on emerging markets. HDS Efficiency and Effectiveness focuses on performing assessments and improvement programs on already established firms on mature markets. These business offerings started to get their orders from customers and thus proving their functionality. However, unlike the trucking industry, the construction equipment business area within Volvo Group is lacking such business offerings today. Volvo Construction Equipment is the second largest business area within the Volvo group generating about 16 % of the total sales. Volvo CE is mostly offering hard products and wants to expand its service offerings and assume a better position as a professional service solution provider. The development of HDS for the trucking industry and the need for Volvo CE to expand its service offerings laid the background for this thesis. One of the market segments Volvo CE provides equipments is to the quarry and aggregate business segment. Customers with in this business area were successfully contacted and collaborated in this study. This master thesis investigated what the customers in the quarry and aggregate business area needs and problems are and developed a service concept which Volvo CE can offer while at the same time solving customer problems. This service concept was found out to be Energy Efficiency Improvement Service intended to help lower production costs of the customer by eliminating or lowering energy wastes and improve environmental impacts by lowering carbon emissions. Moreover, customer energy performance measures were studied and analysed if they are robust enough to be used as measures to the improvements inevitable by the new service offer, the Energy Efficiency Improvement Service. Results show that the energy performance measures currently in use are not robust enough, and suggest further development of energy performance measure system. In order to realize the service offer in a practical manner, the five lean principles (define value, identify value stream, floe, pull and continuous improvement) were tested if they can be used as tools to identify and measure energy wastes at the customers operation site and proved to be useful.

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  • 28.
    Gharechaie, Arman Tommy
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Darab, Omid
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Achieving New Standards in Prosthetic Socket Manufacturing2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Preface: The research about product development of a prosthetic socket was conducted by two students from Mälardalen University, department of Innovation, Design, and Technology.

    Background: The most recent public survey shows that an estimated 5 million people in China are amputees, out of which a significantly large portion are below-elbow amputees.

    Sockets sold to below-elbow amputees are equipped with only two surface electromyography sensors, has low comfortability, has problems with perspiration, and a high weight. The current standard for socket manufacturing has not changed in decades.

    Research Questions: The following research questions have determined the direction of the research: (1) What measurable factors contribute to a convenient and ergonomic feature design in prosthetic socket from the end-user’s perspective? (2) How can the weight and functionality be improved to achieve a prosthetic socket more suited to the end-user, with respect to the existing prosthetic socket? (3) Which material and manufacturing method is suitable for producing cost-effective and customized prosthetic sockets?

    Research Method: The research was guided by the 5th edition of Product Design and Development by Ulrich & Eppinger (2012) where the product development process described in five of the six phases from planning to test and refinement were utilized.

    The data collection and analysis techniques performed in this research was guided by Research Methods for Students, Academics and Professionals by Williamson & Bow (2002).

    Interviews were conducted with five different stakeholders to find specifications of requirements and concretize subjectivism of what defines quality and ergonomics.

    Implementation: Currently, below-elbow amputees order sockets from orthopedic clinics. The socket was identified as a product of Ottobock. Investigations were made to find optimal solutions to the specification of requirements.

    Results: The development of a socket concept was designed for additive manufacturing using a multi-jet fusion printer.

    Analysis: This concept had significant improvements to parameters: higher grade of customizability, 30 % reduced weight, 48 % cost reduction, a new production workflow with 93,5 % automation, and a 69 % reduction in manual work hours.

    Conclusions: The data of the research strongly indicate existing potentials in enhancing socket design techniques and outputs by implementation of additive manufacturing processes. This can prove to be beneficial for achieving more competitive prosthetics and associated services.

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  • 29.
    Hallin, Anette
    KTH.
    Size Matters: Ostensive and performative dimensions of organizational size2009Doctoral thesis, monograph (Other academic)
    Abstract [en]

    Organizational size is a common way to describe and understand organizations invarious settings: in every-day situations as well as in organizational research. Withinorganization theory, organizational size has been seen variously as a basic feature ofthe organization (an independent variable); as a result of a reaction to the environmentof the organization (a dependent variable); or as a basic criterion for the selectionand categorizing of empirical cases (a selective variable). Often, organizationalsize is measured through the number of employees, budget or turnover; but linked toit are also associations that might not always match the organizational reality as experiencedby those managing and working in the organization. "is mismatch can causeproblems for the organization as for its members, and illustrates that organizationalsize is not only a variable that can be operationalized quantitatively, but a figure ofthought, affecting our expectations of the organization. "e purpose of this thesis isto develop the understanding of organizational size as a figure of thought by describinghow it has been used traditionally and by developing an alternative definition ofthe concept.

    This is done with the help of a case study of an organization that was perceived as differentin size compared to what it was when measured traditionally. An ethnographicapproach, including shadowing, semi-structured interviews, and the collection ofprinted and digitally stored material related to the case, has generated the empiricalmaterial which has been analyzed through a narrative approach.

    Understanding organizational size as a figure of thought makes it apparent that thetraditional view of organizational size builds on certain implications regarding theorganization, implications not acknowledging the ongoing organizing aspects. "eempirical case illustrates that the size of the organization is not only a question ofwhere the borders around “the organization” are drawn, but when they are drawn,since it can be seen to be a continuously constructed action net. Two types of actionsare identified: actions of narrativization and actions of realization. Whereas the firsttype involves actions that lead to the emergence of narratives about the organization,the second type constitutes actions that inscribe the organization into differentmaterialities. "ese two types of actions illustrate how the borders around “theorganization” are drawn and help explain the mismatch between expectations of theorganization based on perceptions of its size. "e conclusion is that “organizationalsize” is not only something that is, but something that is done. "ese two dimensionsof the concept are called “the ostensive” and “the performative”, respectively. Eventhough “organizational size” makes “the organization” present, it has limitations as atheoretical concept if its performative dimensions are not acknowledged, since it createsa simplified impression of “the organization” as being a static entity.

  • 30.
    Hallin, Anette
    et al.
    Mälardalen University, School of Business, Society and Engineering.
    Karrbom Gustavsson, Tina
    KTH, Projektkommunikation.
    Managing Death: Corporate Social Responsibility and Tragedy2009In: Corporate Social Responsibility and Environmental Management, ISSN 1535-3958, E-ISSN 1535-3966, Vol. 16, no 4, p. 206-216Article in journal (Refereed)
    Abstract [en]

    Drawing on the true story of the actions of a middle manager in a major industrial company after the unexpected death of one of his employees, while participating in one of the most important social rituals to humans and society - the creation of meaning of death - we take an analytical approach to corporate social responsibility (CSR). This is done by discussing the overlap between CSR and human resource management (HRM). The story induces us to question the upholding of CSR an HRM as separate theoretical fields, since the managerial practice seems to indicate that these have merged into one. Also, the story indicates that the borders between the 'private' and 'public' roles in managerial practice are blurred and that to be a middle manager today is quite complicated. The article finishes with a discussion on why the writing of policies may not be the answer to this problem.

  • 31.
    He, Xiaohe
    et al.
    Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China.
    Wu, Meng
    Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China; Tianjin Guokeyigong Science & Technology Development Co., Ltd., Tianjin, China.
    Li, Hailong
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Liu, Shengchun
    Tianjin Key Laboratory of Refrigeration Technology, Tianjin University of Commerce, Tianjin, China.
    Liu, Bin
    Tianjin Key Laboratory of Refrigeration Technology, Tianjin University of Commerce, Tianjin, China.
    Qi, Hongzhi
    Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China; Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China.
    Real-time regulation of room temperature based on individual thermal sensation using an online brain–computer interface2022In: Indoor Air, ISSN 0905-6947, E-ISSN 1600-0668, Vol. 32, no e13106, article id e13106Article in journal (Refereed)
    Abstract [en]

    Regulation of indoor temperature based on neurophysiological and psychological signals is one of the most promising technologies for intelligent buildings. In this study, we developed a system for closed-loop control of indoor temperature based on brain-computer interface (BCI) technology for the first time. Electroencephalogram (EEG) signals were collected from subjects for two room temperature categories (cool comfortable and hot uncomfortable) and used to build a thermal-sensation discrimination model (TSDM) with an ensemble learning method. Then, an online BCI system was developed based on the TSDM. In the online room temperature control experiment, when the TSDM detected that the subjects felt hot and uncomfortable, BCI would automatically turn on the air conditioner, and when the TSDM detected that the subjects felt cool and comfortable, BCI would automatically turn off the air conditioner. The results of online experiments in a hot environment showed that a BCI could significantly improve the thermal comfort of subjects (the subjective thermal comfort score decreased from 2.45 (hot uncomfortable) to 0.55 (cool comfortable), p < 0.001). A parallel experiment further showed that if the subjects wore thicker clothes during the experiment, the BCI would turn on the air conditioner for a longer time to ensure the thermal comfort of the subjects. This has further confirmed the effectiveness of TSDM model in evaluating thermal sensation under the dynamic change of room temperature and showed the model's good robustness. This study proposed a new paradigm of human-building interaction, which is expected to play a promising role in the development of human-centered intelligent buildings.

  • 32.
    Heikinaho, William
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Vamvakopoulos, Anastasios
    Mälardalen University, School of Innovation, Design and Engineering.
    Produktutveckling: Av hölje till timer2014Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
  • 33.
    Hellsing, Manne
    Mälardalen University, School of Innovation, Design and Engineering.
    Nästa generations vattensängsvärmare2014Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Denna rapport innefattar ett examensarbete av Manne Hellsing, studerande på Mälardalens Högskola inom Ingenjörsprogrammet, Innovation och produktdesign.

    Uppdraget har utförts för och på företaget Calesco i Kolbäck och utfördes mellan den 1/4-2013 och den 13/6-2013. Det uppdrag som delades ut av Calesco bestod av att konstruera en ny typ av vattensängsvärmare, med någon form av trådlös styrning. I detta arbete ingick att undersöka vilken väg som var den rätta att gå med framtidens vattensängsvärmare samt att skapa en prototyp av konceptet.

    För att kunna angripa problemet på rätt sätt utfördes noggranna förstudier i början av projektet. Med hjälp av undersökningar av befintliga produkter i Calescos sortiment och undersökningar av konkurrerande produkter skapades ett bra grundmaterial för att kunna fastställa vad problemet faktiskt var och i vilken riktning projektet borde gå. Nuvarande produkter undersöktes med en bred grund där all information snappades upp, oavsett hur viktig eller oviktig den till synes var. Med detta arbete som grund skapades en konkurrentanalys där olika lösningar på problemet undersöktes. Studierna visade upp tydliga krav på funktioner som bör finnas i produkten samt mer tekniska krav.

    Härifrån upprättades en funktionsanalys och utifrån denna och konkurrenterna en QFD. Med syfte att ge en bra grund till vilka konkurrenter som kunde ses som störst, syftet var även att lägga grunden för vad som skulle komma att bli kravspecifikationen för produkten. I detta steg fastställdes att de största konkurrenterna på marknaden var Calesco Digital samt Carbon Heater IQ Carbon.

    Kravspecifikationen som skapades låg under hela arbetets gång som riktlinjer och har styrt in arbetet på rätt väg.

    Nästa steg i projektet var en kreativ fas där en rad olika koncept tog form. Totalt sett skapades tio unika koncept som sedan skulle utvärderas. I samband med utvärderingen av koncepten hölls möten med ansvariga på Calesco för att säkerställa deras samtycke med hur de olika koncepten värderades.

    Koncepten utvärderades med hjälp av en två-delad Pugh’s matris, för att avgöra vilka som var bättre eller sämre med avseende på de uppsatta kraven. Utav de tio ursprungliga koncepten utmärkte sig fyra stycken som bättre i den första delen av Pugh’s matris. Dessa togs då vidare i ytterligare en runda av samma verktyg, för att utröna vilket av dessa fyra som var allra bäst. Det valda konceptet studerades sedan ytterligare med hjälp av QFD, FMEA, DFM och DFA.

    CAD-konstruktion vidtog sedan för att dels illustrera konceptet samt för att simulera hållfastheten hos konstruktionen. Samtidigt påbörjades ett prototyparbete av en extern teknikutvecklare.

    Det slutgiltiga resultatet är en vattensängsvärmare som styrs med hjälp av en mobiltelefon eller annan trådlös enhet. Detta ger goda möjligheter för att implementera ytterligare funktioner i produkten. Denna lösning är helt unik på marknaden.

    Prototyparbetet hann inte färdigställas fullständigt utan avslutas inom kort av Calesco.

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    Examensrapport_mhg10006
  • 34.
    Hemmingsson, Daniel
    Mälardalen University, School of Innovation, Design and Engineering.
    Produktutveckling av justerbar tvättställsmodul2014Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report is part of a thesis project at the undergraduate level in the subject of Product Development. The work was carried out for Runius Design AB in Stockholm in cooperation with LinTec Combisystem AB and Calibra AB. The work comprises 15 credits and was conducted by a student from Mälardalen University during the spring semester 2014. The assignment involved a further development of an accessible and adjustable washbasin component for disabled, which is part of LinTec´s product assortment. The requirements for the new product involved designing a more easily mounted and cheaper to produce product. The product should also be suitable for both home and public environments.

    The product development process was initiated with understanding the problem which included analyzing the client's requirements and a review of the product sold today. Using the collected information and applying various product development tools, the idea generation could take place which ended up in two overall concepts. During discussions with the client, taking into account the requirements and desired features for the next generation product, the preferred concept was chosen and further developed into a final product.

    The final product involved a design with custom made frames of bent structural steel adapted for various standard components. The frame is simple to manufacture and material-optimized, which facilitates the manufacture and is also more economically beneficial than the previous version.

    The product consists of a wall cassette mounted on the bathroom wall. On each side of the cassette walls there are a pair of telescopic rails with a guiding plate mounted between them. A gas spring is vertically mounted between the guiding plate and the wall cassette performing the height adjustment of the module. A cover plate is mounted on the front of the guiding plate whereupon a washbasin, associated basin mixer and a custom made mirror frame together with a mirror plate is fixed. Moreover, the product contains standard components such as water seal, flexible water hoses, drain hoses, bolts, nuts, screws and a trigger button for the gas spring.

    Structural integrity was checked by analysis in the computer software SolidWorks, a 3D-based Computed Aided Design-program. The final product is illustrated in the shape of rendered CAD images, assembly drawings and manufacturing drawings.

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    Produktutveckling av justerbar tvättställsmodul
  • 35.
    Holmqvist, Joacim
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Hägglund, Mattias
    Mälardalen University, School of Innovation, Design and Engineering.
    Dämpande dörrstopp: Examensarbete, produktutveckling -konstruktion2012Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Denna rapport beskriver det examensarbete som genomförts av Joacim Holmqvist och Mattias Hägglund under vårterminen 2012 vid Mälardalens Högskola i Eskilstuna. Projektet är ett uppdrag från företaget Ztift AB som vill lösa vad de tycker är ett vardagligt problem.

    Genom undersökningar har Ztift funnit en tillsynes outvecklad marknad för vad gäller dörrstopp i vardagliga hem. De konkurrenter som hittats lever inte upp till vad det moderna hemmet efterfrågar och detta vill Ztift ta vara på.

    Projektet startar med en problem- och researchfas där gruppen samlar och analyserar information rörande problemet, konkurrenter och inspirationskällor. Detta följs sedan upp av en kreativ fas och slutligen konceptval.

    Under projektets gång har flera produktutvecklingsverktyg används såsom Brainstorming, QFD, FMEA. Resultatet från dessa verktyg har kommit att forma projektets resultat.

    Stort arbete ligger i kundnytta och användarvänlighet där produkten ska ge en upplevelse utöver vad som förväntas.Trenden påvisar att soft-close är något som börjar sprida sig från köket ut till övriga delar av hemmet. Detta har gruppen försökt att ta vara på och integrerat i produkten som tagits fram. Produkten håller, dämpar och släpper dörren på ett enkelt men ändå smart. Tillsammans med ett snyggt utseende hoppas gruppen att den uppfyller kundernas önskemål.

    Slutsatsen beskriver ett lyckat resultat som gruppen är nöjd över att presentera. Med hjälp av 3D-modellering har gruppen visualiserat konceptet vilket finns presenterat i denna rapport. Denna modellering visar att de ställda kraven med stor sannolikhet uppfylls. Mål som till exempel enkel användning samt innovationsrik funktion är i gruppens ögon väl nådda, men tills en prototyp tillverkats är detta dock svårt att påvisa med full säkerhet.

  • 36.
    Horneman, Louise
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Wagner, Malin
    Mälardalen University, School of Innovation, Design and Engineering.
    Att behandla produktivitetsaspekter vid förändringsprojekt inom läkemedelsindustrin2016Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
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    fulltext
  • 37.
    Hossaini, Fazle Al
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Customer quality analysis of outdoor clothing: Identifying customer needs of outdoor products directly through customer interviews and their consciousness about environmental and social sustainability.2011Independent thesis Advanced level (degree of Master (One Year)), 30 credits / 45 HE creditsStudent thesis
    Abstract [en]

    The main aim of this report is to identify customer needs of outdoor products (jackets, pants, shoes etc.) directly through customer interviews and their consciousness about environmental and social sustainability. And my report can be used as a base for „product design‟ of Outdoor clothing. Also from my report both the suppliers and customers can get a good idea of „Environmental and social aspect of clothing technology‟.

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    Customer quality analysis
  • 38.
    Hult, Josefin
    Mälardalen University, School of Innovation, Design and Engineering.
    The development of a frameless glass door made for wheel loaders2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This thesis performed on master level covers an assignment given by the cab division at Volvo Construction Equipment (Eskilstuna, Sweden). The thesis has been carried out by Josefin Hult during the period 2014-01-23 to 2014-05-30 at Mälardalen University.

    Volvo Construction Equipment manufactures products including wheel loaders, backhoe loaders and articulated haulers. The assignment involves developing the standard door for larger wheel loaders. The current door has a welded frame surrounding the glass that is considered outdated and not cost effective. Volvo Construction Equipment wishes that the door was made in glass in a greater extent. The aim of the assignment has been to generate concepts regarding a glass door that fulfills given requirements. Three research questions have been stated and answered during the process.

    The product development process has consisted of three phases: information gathering, concept development process and development of detailed concept. For example, field studies and benchmarking have been performed to gather information about competitors’ products and the manufacturing and assembling of the current door. Concepts for handrails, sealant and overall door design have been generated in an iterative process. All components of the door have been developed into a detailed concept during the last phase of the process. The process has resulted in a frameless glass door. The concept suggestion consists of; a tempered sheet of glass, a clip list (sealant) that covers the edges of the glass, two different handrails, inner and outer handles, a gas spring, components to attach handrails against the glass, a cover and a lock mechanism.

    The major conclusion that is drawn is that it is fully possible to develop a door made in glass in a greater extent than the current door. Many competitors have machines where the door is made in glass in a large extent. This makes it believable that the glass door also will be perceived as timely and more modern and clear.

    Recommendations have been developed if there is interest in further development. The recommendations include, among others, development of handrail and test of prototype to ensure that all requirements are fulfilled.

    Figures are produced by the author if not stated otherwise.

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    The development of a frameless glass door made for wheel loaders
  • 39.
    Hult, Josefin
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Dahlström, Erika
    Mälardalen University, School of Innovation, Design and Engineering.
    Spänning i vardagen: Konstruktion av miniverk i byggsatsform2012Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Denna rapport sammanfattar det examensarbete som utförts 2012 på kandidatnivå av Erika Dahlström och Josefin Hult på Mälardalens Högskola i Eskilstuna. Examensarbetet har utförts i samarbete med ÅF Technology AB i Västerås.

    Projektets idé uppstod i ett tidigare fiktivt högskoleprojekt där tanken om ett vindkraftverk skulle vara intressant för privatpersoner kom till. Detta projekt har vidareutvecklat denna tanke och projektet har då utvecklats till att syfta till att undersöka om det finns en marknad för miniverk i byggsatsform avsett för privatpersoner, vad marknaden efterfrågar samt utveckla och konstruera en miniverksmast. Ett miniverk är ett vindkraftverk som vanligtvis inte behöver bygglov.

    För att kunna besvara hur marknaden ser ut har omfattande research utförts samt en marknadsundersökning. Från researchen sågs att det finns liknande befintliga produkter vilket innebar att projektets syfte gick från att konceptutveckla ett helt miniverk till att differentiera vår produkt från konkurrenternas. Detta gjordes genom att utveckla en mast som ger brukaren större valmöjligheter genom bland annat underlätta montering samt underhåll av sitt miniverk.

    Vid konstruktion har fokus lagts på knäckningsberäkningar då knäckning måste tas på största allvar för att undvika potentiellt allvarliga olyckor. Beräkningar har jämförts med simuleringar utförda i Solid Works vilket visar på att beräkningarna bör vara korrekta.

    Resultatet blev en 15,4 meter hög mast uppdelad i fem sektioner. Masten höjs och sänks genom en vev, block och vajrar. För att säkra att masten står stabilt finns åtta stycken stabiliserande vajrar fästa på två mastsektioner. Denna mast uppfyller majoriteten av de krav som ställts upp i en kravspecifikation. Att alla krav inte kunde uppfyllas beror på projektets begränsade tid. Dock har tydliga rekommendationer getts för att möjliggöra en vidareutveckling av detta resultat så att alla krav kan uppfyllas.

    Under hela produktutvecklingsprocessen har ett flertal olika produktutvecklingsverktyg använts som stöd och kvalitetssäkring i arbetet. Arbetet med projektet har fungerat väl, dock var en del frågor inom projektet mycket komplexa vilket innebar en del förseningar.

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    fulltext
  • 40.
    Högman, Fredrik
    Mälardalen University, School of Innovation, Design and Engineering.
    Managing the development of a functional layout in the pharmaceutical industry2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Laws and regulations are controlling and have generated great impact on the pharmaceutical industry and putting high requirements on production to follow good manufacturing procedures. There is a high pressure on production to decrease the time-to-volume for new products implementations due to the long product development phases where the medicine product patent life only have 35-40% left when production can start. This have generated that production have applied a way of thinking when developing production lines that have a tendency of becoming a scale up over time where a new production line is added to the production plant to be able to produce the volume needed for customers. Astra Zeneca, one of the largest pharmaceutical companies in the world, predicts a future where they will need to handle more products launches parallel where the new product will be produced both in small and large volumes to new customers.

    In this thesis a single case study have been performed at where a new product is being implemented, the project Genuair at Astra Zeneca Sweden operations in Södertälje. This thesis have be executing with the overall aim of supporting the development of a new layout, a functional layout. The project Genuair is a project where a new product is introduced in a new way, by buying a patent. The project is in the beginning of building the first production line that have a continuous flow layout and there is already a plan to build a second production line to be able to produce the needed volume. The predicted future for the Genuair products is in line with the general predicted future within Astra Zeneca generating a need for higher volume flexibility and higher product-mix flexibility. This change will have an impact on the current Genuair production layout generating a decreasing of 45 % in volume output after analyzing the production line by building a simulation model. The current production layout is facing different limitations where long complex changeovers is the main reason for the decreasing in volume output. The current layout is also generating limitations where production is limited by equipment, vulnerable for shutdowns, laws and regulations and the need for fulfilling the capabilities of safety, health and environment, quality, deliverability and cost.

    A functional layout is presented that builds on achieving volume flexibility, product-mix flexibility and expansion flexibility. The introduction of a functional layout will generate challenges within the areas of laws and regulations, compliance, location of machines in different hygiene zones, traceability, material handling, the product-process matrix and the mind set within Astra Zeneca. The functional layout is analyzed by the development of a simulation model and compared to the current production layout and proven to handle the predicted future by primarily handling the changeovers in a different way that is the main limitation that follows by having a need for high volume flexibility and product-mix flexibility within the pharmaceutical industry. The functional layout will generate a higher degree of flexibility that will come to the expense of cost.

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    fulltext
  • 41.
    Islam, Akib
    Mälardalen University, School of Innovation, Design and Engineering.
    Cab Door Design: Improvement of door corners2014Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis presents a product development process, where an existing solution on a cab door have been analysed and developed, with the aim to result in a cost-effective concept solution for handling tolerances on the door frame.

    The methodological approach in this thesis is based on Volvo Construction Equipment’s development model; The Global Development Process, which started with a pre-study phase where the problem formulation was established.

    The problem formulation in short is to find a solution for how to handle narrow tolerances in steel profiles for the door weldment on cab doors. Various solution ideas were discussed and concepts were generated with focus to design a new cab door corner that would solve the problems addressed by the project.

    The applied method resulted in a final concept consisting of the same steel profiles but with new dimensions, and two new concepts in each corner; one corner module that is placed inside the steel profiles and joined by welding, and a plastic shell that covers the welded corner.

    The concept was validated using a prototype of the proposed solution, where tests show that the requirements were achieved, besides a few deficiencies.

    A cost comparison between the existing and the proposed solution was made within limitations for this thesis. The result of the cost comparison shows an indication of that the proposed solution can be more cost-effective than the existing solution.

    Some of the recommendations after have completing the project are to make a complete cost comparison to ensure that the indication is correct and to analyse the new components to optimize and define the dimensions of them.

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    Cab Door Design
  • 42.
    Jansson, Hanna
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Englöv, Mathilda
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Environmental analysis of asynchronous motors: A case study on the rotor and its materials2023Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Material efficiency strategies are of significant importance for the shift towards producing sustainable vehicles and Asynchronous motors (ASM), both for current and new developments. Strategies such as a lightweight design, product lifetime extension, recyclability, and a material selection process based on the three branches of sustainability (ecological, economical, and social). Additionally, this thesis is produced at the request of a case company involved in the production of ASM, with the aim to investigate the sustainability and recyclability of the materials in their current product. This in combination with the importance of circularity, recyclability and resource efficiency, and an increasing market of motors has led to the study’s two research questions (RQ).

    RQ1: To which degree can carbon dioxide emissions and energy usage be reduced by changing the materials in an ASM rotor?

    RQ2: How does the changing of the material in the ASM rotor affect the challenges with recycling it?

    This study contains a theoretical and empirical sub-study. The theoretical sub-study consists of a literature study of published research on the following subjects: Sustainability; sustainable manufacturing; recycled material; recycling processes and circular economy(CE). CE is research in connection to product development. The empirical sub-study is inspired by a policy assessment framework and adapted to fit the thesis. The empirical work contains a life cycle analysis (LCA) with a singular focus on the environmental impact. The work has been conducted during a period of 20 weeks and planned with an agile approach. For the collection of empirical data, six interviews, relevant industrial articles, and the material database Granta EduPack 2022 R2 have been used. Additionally, the thesis contains a comparison between the current material and alternative materials for the ASM rotor. All in all, this has led to a theoretical result with a singular environmental approach to sustainability.  

     

    The result of the thesis has partly been the comparison between the current material in the ASM rotor and the proposed materials. The comparison showed that the maximum values for carbon dioxide (CO2) emissions were equal, and an 8.5 per cent reduction occurred for energy usage. The secondary result is that there are factors that enable and prohibit materials and products’ recyclability potential. Moreover, indicated the result of the thesis that the selection of suitable material could reduce these factors. The authors’ conclusion of the thesis is that a material change has the potential to reduce a product’s current environmental impact, secondary is sustainability a complex term that requires a balance between all three sustainability branches. For future research on the subject is it the author’s recommendation that all three branches of sustainability should be studied in more depth, in connection to the ASM. Moreover, factors outside of CO2 and energy should be studied in further depth.

     

    Keywords: Environmental impact; Sustainability; Recycling methods/material/metals; Circular economy/CE; Product development. 

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    fulltext
  • 43.
    Jansson, Johan
    et al.
    Mälardalen University, School of Sustainable Development of Society and Technology. ABB Automation, Sweden.
    Dahlquist, Erik
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Model based control and optimization in pulpindustry2004In: Proceedings of SIMS 2004: the 45th International Conference of Scandinavian Simulation Society / [ed] Brian Elmegaard; Jon Sporring; Kenny Erleben; Kim Sørensen, 2004, p. 103-110Conference paper (Refereed)
    Abstract [en]

    In this paper we present a combination of the usage of a model for the whole mill on-line simulation and more advanced models for specific process sections for control systems and online diagnostics. Different solution methods are described together with where the different approaches are best suited.

  • 44.
    Jederström, Kathrina
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Andersson, Sebastian
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Process Innovation Challenges: - how to reduce Uncertainty through Discrete Event Simulation2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In today’s competitive market, a company will not succeed unless they stand out in other ways than pure benefits with its products. This can be reached by in some way altering the process currently in place. One way, is by introducing process innovation. Advantages related to the adoption of process innovation has been found in literature, for example by increase competitiveness, increase productivity, and increase plant visibility. However, process innovation evokes uncertainty.

    Discrete Event Simulation (DES) models has in previous research been suggested as a tool to reduce uncertainty at manufacturing companies when they are undergoing changes. However, the study of change in process innovation setting has been largely ignored. By acknowledging this gap in current research, the aim of this study is to investigate whether the use of DES models are able to reduce uncertainties in process innovation. The study is guided by three research questions:

    1. What are the characteristics of process innovation introduction in a production process context?

    2. How is the production process at manufacturing companies affected by process innovation related uncertainties?

    3. How can the usage of DES contribute to reduction of uncertainties during the introduction of process innovation at manufacturing companies?

    In order to answer these questions, a research methodology consisting of a literature review and a case study including the usage of DES were applied. In this thesis the case study is conducted at a manufacturing company, presented with the goal of making a modification in the production. This is done in an attempt to make it more environmental friendly while also establish a competitive edge over the rivals. To reach this, an implementation of a process innovation technology is under planning, but introducing something new creates numerous uncertainties. To be able to implement this process innovation, uncertainty reduction is crucial.

    By identify literature within the field, and compare with findings from interviews and workshops at the studied company, process innovation characteristics and how process innovation evokes uncertainties were identified. From the usage DES in this thesis, uncertainties were reduced, partly reduced and identified while some uncertainties remain unresolved. Moreover, the findings point to the creation of the simulation model working as a visualisation of the current production and the possible future, which generates a discussion platform for all stakeholders involved.

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    Process Innovation Challenges
  • 45.
    Jiao, Yingqi
    et al.
    National Engineering Laboratory for Pipeline Safety/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing, China.
    Qiu, Rui
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. National Engineering Laboratory for Pipeline Safety/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing, China; .
    Liang, Yongtu
    National Engineering Laboratory for Pipeline Safety/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing, China.
    Liao, Qi
    National Engineering Laboratory for Pipeline Safety/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing, China.
    Tu, Renfu
    National Engineering Laboratory for Pipeline Safety/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing, China.
    Wei, Xintong
    National Engineering Laboratory for Pipeline Safety/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing, China.
    Zhang, Haoran
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Center for Spatial Information Science, The University of Tokyo, Chiba, Japan.
    Integration optimization of production and transportation of refined oil: A case study from China2022In: Chemical engineering research & design, ISSN 0263-8762, E-ISSN 1744-3563, Vol. 188, p. 39-49Article in journal (Refereed)
    Abstract [en]

    The logistics management of refined oil under a separation of production and transportation leads to high logistics costs and a mismatch between the supply and demand sides. This paper intends to develop a general framework to assess the impact of the integration of the production and transportation in terms of economic, environmental, and energy benefits. Firstly, this paper proposes a tactical-level mathematical model for optimizing the integration of production and transportation of refined oil to minimize the total cost. In the model, several factors, such as level of market demand, production capacity limits, transportation modes, and transportation capacity, are taken into consideration. Then, the energy, economy, and environment analysis method are applied to assess the impact of the integration on the field of refined oil logistics. Four scenarios are set up and a comparative analysis is carried out in detail in China. The optimal resource allocation scheme and production adjustment scheme for each scenario are obtained. The results show that after the integration, the logistics cost is reduced by 6.8 %− 11 %, the greenhouse gas emission is reduced by 7.3 %− 17.7 %, and the energy consumption per unit turnover is reduced by 4.4 %− 7.4 %. This proves that the integration of production and transportation guided by the proposed method performs positive economic, environmental, and energy benefits. Finally, policy implications are provided.

  • 46.
    Johansson, Emma
    Mälardalen University, School of Innovation, Design and Engineering.
    Koordinering av konstruktionsprocess från global instruktion till lokal tillämpning2012Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Quality management has become increasingly common among companies these days. It is about identifying and interpreting the customers, which after all are the motive for the business’s whole existence. Quality management also means delivering products and services that meet and preferably exceeds the customers’ expec­tations, with as low resource consumption as possible.

    Within the global Westinghouse group a worldwide instruction for the design process has been developed recently. At the department of Service Engineering Mechanical Products at Westinghouse Electric Sweden in Västerås there are several old instructions on the design process. It has been shown that the design process in the quality system partially consists of outdated documentation, which needs to be updated in order to support the business properly.

    A new management system called NiLS is currently being integrated into the swedish business, and in association to that the company's core processes and sub-processes are being mapped. This master thesis aims to adapt the local work with the design process to the global instructions.  The objective is to integrate the new process into NiLS and to distribute all the document and instructions over  the sub-processes.

    Systems approach is the science theory underlying the thesis since it has an emphasis on system architecture, interfaces and flows. The thesis work is primarily based on the application of qualitative methodology as the data were mainly gathered from interviews, internal company records and direct observations, combined with literature on topics regarding process management and quality improvement.

    The thesis work has resulted in a local design process based on the Westinghouse Group’s world-wide instruction in the form of a flow diagram for the management system and a new instruction that describes every step in more detail. In addition, the existing instructions have been rearranged and distributed over the new processes. Finally, a number of recommendations on further work regarding the process have been evolved.

  • 47.
    Johanssson, Joakim
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Jakobsson, Adam
    Mälardalen University, School of Innovation, Design and Engineering.
    Skapa ett equalized underhålls/planeringsprogram samt minimera driftstopp2012Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report is a thesis on requests from Sandvik Mining and Construction (SMC) in autumn of 2012. The goal of this work was to study the feasibility of creating and implementing an Equalized preventive maintenance program in SMC maintenance operations and reduce downtime for preventive maintenance (PM). To investigate whether this was possible, the authors studied the current procedures for the PM. The authors have collected and analyzed all relevant information within the maintenance department reporting system as well as through interviews determined whether it is practical to introduce a Equalized PM programs. The authors had also studied the possibilities to entrust part of the maintenance work to the operators of the machine cells. The results show that it is feasible to introduce an Equalized PM programs in operation when the PM is divided into smaller packets to reduce downtime at one time. Other benefits of the introduction of Equalized PM would be to increase the condition monitoring of components and systems.

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    Examensrapport
  • 48.
    Johnsson, Mikael
    Blekinge Tekniska Högskola, Sweden.
    Creating High-performing Innovation Teams2017In: Journal of Innovation Management, ISSN 2183-0606, Vol. 5, no 4, p. 23-47Article in journal (Refereed)
    Abstract [en]

    This research suggests a conceptual process of how to create highperforming

    innovation teams to meet the market’s need of faster ways of

    conducting innovation work. The CIT-process (Creating high-performing

    Innovation Teams) is a five-step-process systematically developed to meet

    organizational-, team-, and individual perspectives. On a holistic level, this

    research contributes to prior research by bringing research on innovation teams

    and high-performing teams together to become a pre-stage to established group

    dynamic processes and innovation processes. Practical implications and future

    research are suggested.

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  • 49.
    Johnsson, Mikael
    Blekinge Tekniska Högskola, Sweden.
    How Understanding of Agile Innovation Work Affects Innovation Teams2017Conference paper (Refereed)
    Abstract [en]

     This research aims to explore how the understanding of agile innovation work methodologies affect innovation teams and the progress of innovation projects. In a long-term research, three innovation teams were studied through questionnaires, interviews, audio-recorded interviews and rich notes from. The data was analysed using group development theories and knowledge taxonomy to determine the relation of the teams' estimated knowledge and their performance in relation to the teams’ group development status. The results indicate that innovation teams that are unfamiliar with agile innovation work tend to not seek collaboration due to uncertainty, which results in slow progress. When an innovation team’s surrounding organisation is unfamiliar with agile innovation methodologies it tends to not offer their support until the innovation team can prove progress, also slowing the progress down. The opposite is noticed when innovation teams and the organisation understands how to apply agile innovation work methodologies, collaboration occurs easily, resulting in positive progress. Further research is suggested.

  • 50.
    Johnsson, Mikael
    Blekinge Tekniska Högskola, Sweden.
    Innovation Enablers and Their Importance for Innovation Teams2016Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The aim of this research is to develop an understanding of factors that enable innovation teams to conduct agile innovation work in an industrial context. The background and reason for this research are not only that innovation is necessary for companies that want to stay in business, but also that these companies need to increase the speed of their innovation work to stay competitive. Research has demonstrated that cross-functional (X-functional) innovation teams are fast and agile, and are therefore assumed to be suitable for these activities. Still, there is much knowledge to be gained.

    Prior research has identified factors that are seen as important from an organizational, team, and individual perspective to enable teams to work with potentially innovative outcomes. However, in cases where teams have been created with the purpose of conducting innovation work, i.e. innovation teams, problems related to e.g. performance and learning have occurred, and the innovation work has stopped shortly after conducted research projects due to the high level of complexity.

    The research question (RQ) that this thesis explores is the following: “Which innovation enablers are important for innovation teams when conducting agile innovation work in an industrial context?” Based on the RQ, two sub-questions are formulated and operationalized to answer the RQ.

    Qualitative data have been collected from five innovation teams in two phases. Two innovation teams in two small- and medium-sized enterprises (SMEs) were studied in the first phase to clarify the situation for innovation teams before innovation work is begun. In the second phase, which built on the first one, three innovation teams in a large industrial company were studied as they conducted three separate innovation projects.

    This research revealed five main findings: first, knowledge about important innovation enablers (Enablers) revealed from a literature study; second, the Innovation Team Model (ITM), demonstrating innovation teams before innovation work is begun in relation to the individuals and organization in a holistic way; third, the innovation team creation process (CIT-process), a stepwise process in how to create an innovation team; fourth, the innovation facilitator, who supports and facilitates the innovation team throughout the CIT-process and the innovation projects; and fifth, the Extended Innovation Process (EIP), an extension of the traditional innovation process by a pre-phase, i.e. a Preparation-phase, to gather and prepare the innovation teams for forthcoming work. The findings regarding the importance of the CIT-process, the EIP, and the innovation facilitator were unexpected.

    The findings formed the Innovation Team Framework (ITF), which represents all of the findings in relation to each other. The EIP is used as the basis for which the other innovation enablers are provided to the innovation teams through an innovation facilitator’s competence throughout the innovation project. The ITF is multidimensional: it could serve as a tool to describe both the simplicity and the complexity when creating an innovation team and forthcoming work and activities.

    All separate findings within this research contribute to prior research in individual ways, however, the ITF is the main scientific contribution of this study to Innovation management.

    Practitioners can use the ITF as a complement to already established methodologies for product development or similar; however one should be aware of the limited nature of the data set that served as the basis for analysis and development of the ITF.

    Further studies regarding the ITF and its detailed models and processes are suggested.

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