Failure Mode and Effects Analysis Using Generalized Mixture Operators

Authors

Kamran Rezaie Department of Industrial engineering, National University, Iran

mahdi shaghaghi Department of Industrial engineering, Qazvin University, Iran

Abstract:

Failure mode and effects analysis (FMEA) is a method based on teamwork to identify potential failures and problems in a system, design, process and service in order to remove them. The important part of this method is determining the risk priorities of failure modes using the risk priority number (RPN). However, this traditional RPN method has several shortcomings. Therefore, in this paper we propose a FMEAwhich uses generalized mixture operators to determine and aggregate the risk priorities of failure modes. In a numerical example, a FMEA of the LGS gas type circuit breaker product in Zanjan Switch Industries in Iran is presented to further illustrate the proposed method. The results show that the suggested approach is simple and provides more accurate risk assessments than the traditional RPN.

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Journal title

Journal of Optimization in Industrial Engineering

volume 5 issue 11

pages 1- 10

publication date 2012-09-30

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Keywords

Failure mode and effects analysis (FMEA) Generalized mixture operators Fuzzy set Risk priority number

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