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所属单位：民航学院
发表刊物：Zhongguo Jixie Gongcheng
摘要：The TOPSIS method was improved by information entropy weights as attribute weights, failure modes of aeroengine life-limited parts were taken as assessment objects, and risk indicators were blurred. This new method for risk assessment of life-limited parts was proposed. Three factors with severity, occurrence and detection difficulty of failure mode were made to be main risk indicators. Triangular fuzzy number decision matrix was established and standardized. In the case of fault data for small sample, decision information of relevant experts and engineers was integrated to calculate entropy weights of risk indicators, and then the entropy weights were used as weighted vectors to amend the normative decision matrix. The TOPSIS was utilized to evaluate. Five failure modes were evaluated with positive and negative ideal solutions, Euclidean distances and relative proximity data. The fuzzy risk assessment method based on improved entropy TOPSIS may achieve the accurate sorting of assessment objects, and it is more efficient to analyze than the hazard matrix mapping method. The method may provide a reliable basis for risk reduction and development of preventive measures in failure mode and effect analysis(FMEA) method. © 2018, China Mechanical Engineering Magazine Office. All right reserved.
ISSN号：1004-132X
是否译文：否
发表时间：2018-05-25
合写作者：Li, Yuanbin,李龙彪
通讯作者：孙有朝