期刊
INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE
卷 45, 期 10, 页码 2012-2030出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00207721.2012.760669
关键词
failure mode and effects analysis; intuitionistic fuzzy set; OWA operator; Euclidean distance
类别
资金
- Scientific Research Project of Shanghai Municipal Public Health Bureau [2008043]
- Shanghai Pudong New Area Science and Technology Commission [PKJ2009-Y20]
Failure mode and effects analysis (FMEA) has shown its effectiveness in examining potential failures in products, process, designs or services and has been extensively used for safety and reliability analysis in a wide range of industries. However, its approach to prioritise failure modes through a crisp risk priority number (RPN) has been criticised as having several shortcomings. The aim of this paper is to develop an efficient and comprehensive risk assessment methodology using intuitionistic fuzzy hybrid weighted Euclidean distance (IFHWED) operator to overcome the limitations and improve the effectiveness of the traditional FMEA. The diversified and uncertain assessments given by FMEA team members are treated as linguistic terms expressed in intuitionistic fuzzy numbers (IFNs). Intuitionistic fuzzy weighted averaging (IFWA) operator is used to aggregate the FMEA team members' individual assessments into a group assessment. IFHWED operator is applied thereafter to the prioritisation and selection of failure modes. Particularly, both subjective and objective weights of risk factors are considered during the risk evaluation process. A numerical example for risk assessment is given to illustrate the proposed method finally.
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