Studies of Design and Assembly Defects on Integrated and Modular Architectures

Document identifier: oai:dalea.du.se:1148
Keyword: Engineering and Technology, Mechanical Engineering, Production Engineering, Human Work Science and Ergonomics, Teknik och teknologier, Maskinteknik, Produktionsteknik, arbetsvetenskap och ergonomi, Defect statistics, Product architectures, Product verifications, Stålformning och ytteknik
Publication year: 2005
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Abstract:

It is known that despite companies’ efforts to improve the quality of their products, design and assembly defects results in large repair costs both in terms of repair and providing feedback to the origin of the defect. The purpose of this paper is to study these types of defects and the defect rates in design and assembly. The paper presents a web based questionnaire answered by 29 companies. The result shows that the defect rate (defects per product) spanned from 0.01 to 10. Also, design and assembly defects covered 46%, 23% respectively, of all occurred defects. A case study is also presented, performed at a company who recently implemented a modular architecture. In this company, defects from 5 700 integrated product architectures are compared with defects from 431 modular architectures. The average defect rate increased by 21.5% – from 0.65 to 0.79 – when a more modular architecture has been implemented. Furthermore, the study showed that the assembly defects have decreased while the design defects increased. The results presented in this paper will also support the development of the MPV (Module Property Verification) method which is briefly described.

Authors

Patrick Kenger

Högskolan Dalarna; Maskinteknik
Other publications >>

Gunnar Erixon

Högskolan Dalarna; Maskinteknik
Other publications >>

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    header: 
        identifier: oai:dalea.du.se:1148
        datestamp: 2021-04-15T13:36:13Z
        setSpec: SwePub-du
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        mods: 
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                version: 3.7
            recordInfo: 
                recordContentSource: du
                recordCreationDate: 2005-05-20
            identifier: http://urn.kb.se/resolve?urn=urn:nbn:se:du-1148
            titleInfo: 
                @attributes: 
                    lang: eng
                title: Studies of Design and Assembly Defects on Integrated and Modular Architectures
            abstract: 
It is known that despite companies’ efforts to improve the quality of their products design and assembly defects results in large repair costs both in terms of repair and providing feedback to the origin of the defect. The purpose of this paper is to study these types of defects and the defect rates in design and assembly. The paper presents a web based questionnaire answered by 29 companies. The result shows that the defect rate (defects per product) spanned from 0.01 to 10. Also design and assembly defects covered 46% 23% respectively of all occurred defects. A case study is also presented performed at a company who recently implemented a modular architecture. In this company defects from 5 700 integrated product architectures are compared with defects from 431 modular architectures. The average defect rate increased by 21.5% – from 0.65 to 0.79 – when a more modular architecture has been implemented. Furthermore the study showed that the assembly defects have decreased while the design defects increased. The results presented in this paper will also support the development of the MPV (Module Property Verification) method which is briefly described.

            subject: 
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                        lang: eng
                        authority: uka.se
                    topic: 
                        Engineering and Technology
                        Mechanical Engineering
                        Production Engineering Human Work Science and Ergonomics
                    @attributes: 
                        lang: swe
                        authority: uka.se
                    topic: 
                        Teknik och teknologier
                        Maskinteknik
                        Produktionsteknik arbetsvetenskap och ergonomi
                    @attributes: 
                        lang: eng
                    topic: Defect statistics
                    @attributes: 
                        lang: eng
                    topic: Product architectures
                    @attributes: 
                        lang: eng
                    topic: Product verifications
                    @attributes: 
                        lang: swe
                        authority: du
                    topic: Stålformning och ytteknik
                    genre: Research subject
            language: 
                languageTerm: eng
            genre: 
                conference/other
                ref
            note: 
                Published
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                        authority: du
                    namePart: 
                        Kenger
                        Patrick
                    role: 
                        roleTerm: aut
                    affiliation: 
                        Högskolan Dalarna
                        Maskinteknik
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                        Erixon
                        Gunnar
                    role: 
                        roleTerm: aut
                    affiliation: 
                        Högskolan Dalarna
                        Maskinteknik
                    nameIdentifier: gex
            originInfo: 
                dateIssued: 2005
                publisher: International Conference on Engineering Design (ICED)
                place: 
                    placeTerm: Melbourne
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                @attributes: 
                    type: host
                titleInfo: 
                    title: 15th International Conference on Engineering Design ICED 05
            location: 
                url: http://du.diva-portal.org/smash/get/diva2:521450/FULLTEXT01.pdf
            accessCondition: gratis
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                form: electronic
            typeOfResource: text