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An assembly-oriented product design methodology to develop similar assembly operations in a mixed-product assembly line
Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.ORCID iD: 0000-0002-3560-9372
Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.ORCID iD: 0000-0003-4308-2678
FlexQube, Sweden.
Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.ORCID iD: 0000-0003-3187-7932
2017 (English)In: Proceedings of the International Conference on Engineering Design, ICED, Design Society , 2017, no DS87-5, p. 131-140Conference paper, Published paper (Refereed)
Abstract [en]

With the growing demands for product variety, Mixed-Product Assembly Lines (MPALs) as an effective means of creating product variety are recently increasing in manufacturing companies. However, handling different products from distinct product families creates high complexity in performing assembly operations in an MPAL. The elevated complexity, calls for increased similarity between assembly operations in an MPAL which requires product design changes accordingly. Hence, the objective of this paper is to suggest an assembly-oriented product design methodology to increase similar assembly operations for various products cross-product families. The proposed methodology uses Interface Diagram, a product architecture modelling tool, for comparing assembly operations crossproduct families, suggesting an assembly-oriented design, and communicating it to designers. The methodology has been developed by conducting a case study in heavy vehicle manufacturing industry. The results highlight a visual approach towards establishing a common language between assembly and design teams to consider the requirements of an MAPL in product design.

Place, publisher, year, edition, pages
Design Society , 2017. no DS87-5, p. 131-140
National Category
Design Production Engineering, Human Work Science and Ergonomics
Identifiers
URN: urn:nbn:se:mdh:diva-36677Scopus ID: 2-s2.0-85029796467OAI: oai:DiVA.org:mdh-36677DiVA, id: diva2:1147555
Conference
21st International Conference on Engineering Design, ICED 2017, 21 August 2017 through 25 August 2017
Available from: 2017-10-06 Created: 2017-10-06 Last updated: 2017-11-01Bibliographically approved
In thesis
1. Flexibility in assembly systems using product design
Open this publication in new window or tab >>Flexibility in assembly systems using product design
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Growing customer demands for product variety, new and rapid technological developments, and the short life cycle of products characterise the current volatile market. To maintain a competitive edge in the market, manufacturing companies need to accommodate flexibility in their assembly systems that are essential parts of the manufacturing systems with respect to cost, time, and creating product variety. Given the importance of establishing flexible assembly systems, the complexity raised by increasing product variety and the value of appropriate product designs to assembly systems highlight the pivotal role of product design in a flexible assembly system. Despite its significance to theory and practice, however, the characteristics of flexibility in an assembly system and its links to product design are still ambiguous and unexplored.

The objective of this thesis is to expand the current knowledge of flexibility in assembly systems and using product design to support its achievement. To accomplish the objective and by adopting an interactive research approach, five case studies were conducted in the heavy machinery manufacturing industry. A literature review underpins all the case studies comprising one multiple and four single case studies.

Through its findings, this research defines flexibility in an assembly system, identifies its dimensions, and pinpoints its enablers. Additionally, three requirements of a flexible assembly system for product design are identified: a common assembly sequence, similar assembly interfaces, and common parts. These requirements, if fulfilled in product design across distinct product families, reduce the perceived complexity and support various flexibility dimensions in the assembly system. Moreover, the development of a common assembly sequence and similar assembly interfaces, as the two key requirements of a flexible assembly system for product design, is described.

Further, based upon developing understanding and knowledge about a flexible assembly system and its requirements for product design, a model and a framework are proposed. The model addresses the role of product design in achieving flexibility in an assembly system. To support the alignment of product design with the key requirements of a flexible assembly system during the product design process, the assembly-oriented framework details the development of these requirements. Through its outcomes, this thesis contributes to the research area of flexible assembly systems and sheds light on its interface with the engineering design field. Moreover, the proposed model and framework aim to assist assembly practitioners and product designers in establishing a flexible assembly system and aligning product design with its key requirements.

Place, publisher, year, edition, pages
Västerås: Mälardalen University Press, 2017
Series
Mälardalen University Press Dissertations, ISSN 1651-4238 ; 244
National Category
Engineering and Technology Production Engineering, Human Work Science and Ergonomics
Research subject
Innovation and Design
Identifiers
urn:nbn:se:mdh:diva-37176 (URN)978-91-7485-356-8 (ISBN)
Public defence
2017-12-15, Raspen, Mälardalens högskola, Eskilstuna, 10:00 (English)
Opponent
Supervisors
Available from: 2017-11-01 Created: 2017-11-01 Last updated: 2017-11-28Bibliographically approved

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Asadi, NargesJackson, MatsFundin, Anders

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