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Reliability prediction based on variation mode and effect analysis
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
Vehicle Dynamics Department, Royal Institute of Technology.
Volvo Construction Equipment, Eskilstuna.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.ORCID iD: 0000-0002-2342-1647
2013 (English)In: Quality and Reliability Engineering International, ISSN 0748-8017, E-ISSN 1099-1638, Vol. 29, no 5, p. 699-708Article in journal (Refereed) Published
Abstract [en]

The possibility of predicting the reliability of hardware for both components and systems is important in engineering design. Today, there are several methods for predicting the reliability of hardware systems and for identifying the causes of failure and failure modes, for example, fault tree analysis and failure mode and effect analysis.Many failures are caused by variations resulting in a substantial effect on safety or functional requirements. To identify, to assess and to manage unwanted sources of variation, a method called probabilistic variation mode and effect analysis (VMEA) has been developed. With a prescribed reliability, VMEA can be used to derive safety factors in different applications. However, there are few reports on how to derive the reliability based on probabilistic VMEA, especially for transmission clutch shafts.Hence, the objective of this article was to show how to derive system reliability based on probabilistic VMEA. In particular, wheel loader automatic transmission clutch shaft reliability is investigated to show how different sources of variation affect reliability.In this article, a new method for predicting system reliability based on probabilistic VMEA is proposed. The method is further verified by a case study on a clutch shaft. It is shown that the reliability of the clutch shaft was close to 1.0 and that the most significant variation contribution was due to mean radius of the friction surface and friction of the disc.

Place, publisher, year, edition, pages
2013. Vol. 29, no 5, p. 699-708
National Category
Other Mechanical Engineering
Research subject
Computer Aided Design
Identifiers
URN: urn:nbn:se:ltu:diva-11028DOI: 10.1002/qre.1420ISI: 000322222600009Scopus ID: 2-s2.0-84880768791Local ID: 9eb82e3a-553b-4cb1-ad97-9f8638f378e5OAI: oai:DiVA.org:ltu-11028DiVA, id: diva2:983977
Projects
Fastelaboratoriet - VINNEXC
Note
Validerad; 2013; 20120510 (jonpav)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Pavasson, JonasKarlberg, Magnus

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