Fuzzy Multivariate Process Capability Index for Measuring Process Capability

Journal of System Management

مقاله 4، دوره 2، شماره 4 - شماره پیاپی 8، دی 2016، صفحه 41-53

نوع مقاله: Research Paper

نویسندگان

Saeed Fayyaz^{* 1}؛ Majid Ebrahimi²؛ Ali Gholi Nejad Devin³

¹Iran Statistics Center (ISC), Industrial department, Tehran, Iran

²Department of Industrial Engineering, Mazandaran University of Science and Technology, Babul, Iran

³Master student of Industrial Engineering, Sadjad Higher Education Institute, Mashhad, Iran

چکیده

Abstract. In the case of process capability index several methods are identified. In this paper ,a new process capability index using fuzzy number and fuzzy probability concept, in order to remove the weakness of other famous method is suggested. After introduction of fuzzy index in univariate case, fuzzy multivariate process capability index is investigated. Finally, this new method is compared to three well-known methods in literature review, with numerical example.

کلیدواژه‌ها

Keywords: Component؛ Process Capability Index؛ fuzzy number؛ Multivariate Normal Distribution

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