中国机械工程2018，Vol.29Issue(10)：1135-1140,6.DOI:10.3969/j.issn.1004-132X.2018.10.001
改进熵权逼近理想解排序法的航空发动机限寿件模糊风险评估
Fuzzy Risk Assessment of Aeroengine Life-limited Parts Based on Improved Entropy TOPSIS Method
摘要
Abstract
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.关键词
熵权/逼近理想解排序/限寿件/模糊/风险评估Key words
entropy/technique for order preference by similarity to ideal solution(TOPSIS)/life-limited part/fuzzy/risk assessment分类
航空航天引用本文复制引用
李元斌,孙有朝,李龙彪..改进熵权逼近理想解排序法的航空发动机限寿件模糊风险评估[J].中国机械工程,2018,29(10):1135-1140,6.基金项目
国家自然科学基金委员会与中国民用航空局联合资助项目(U1333119) （U1333119）
国防基础科研计划资助项目(JCKY2013605B002) （JCKY2013605B002）
工信部民机专项(MJ-F-2011-33) （MJ-F-2011-33）
上海民用飞机健康监控工程技术研究中心开放课题(GCZX-2015-05) （GCZX-2015-05）
