基于灰色理论的航空发动机可靠性指标评估方法

推进技术 ›› 2014, Vol. 35 ›› Issue (7): 874-881.

基于灰色理论的航空发动机可靠性指标评估方法

王大伟¹,王　伟^1,2,冯振宇¹

中国民航大学天津市民用航空器适航与维修重点实验室，天津 300300;中国民航大学天津市民用航空器适航与维修重点实验室，天津 300300; 中国民航大学航空工程学院，天津 300300;中国民航大学天津市民用航空器适航与维修重点实验室，天津 300300

发布日期:2021-08-15
作者简介:王大伟(1975—)，男，博士，讲师，研究领域为发动机适航审定技术。
基金资助:
中央高校基本科研业务费资助项目(ZXH2012J003)；中国民航大学科研启动基金项目(2010QD08X)。

Evaluation Method on Reliability Index of Aero-Engine

Tianjin Key Laboratory for Airworthiness and Maintenance of Civil Aircraft，Civil Aviation University of China，Tianjin 300300，China;Tianjin Key Laboratory for Airworthiness and Maintenance of Civil Aircraft，Civil Aviation University of China，Tianjin 300300，China; College of Aeronautical Engineering，Civil Aviation University of China，Tianjin 300300，China;Tianjin Key Laboratory for Airworthiness and Maintenance of Civil Aircraft，Civil Aviation University of China，Tianjin 300300，China

Published:2021-08-15

摘要/Abstract

摘要： 以层次分析理论为基础，采用二次分布和灰色理论综合评估方法，建立了航空发动机可靠性指标评估模型。将发动机可靠性指标分为总体级、危害度级、故障模式三个层次，故障模式级的数据融合采用二次分布和加权平均的方法，危害度级的数据融合采用层次分析-灰色理论综合评估方法，将航空发动机可靠性指标分散描述成属于不同灰类的向量，将评估灰类向量进行单值化处理得到发动机总体可靠性指标，实现了发动机可靠性指标从故障模式级到危害度级再到总体指标的逐步融合。对某型涡扇发动机应用表明，基于层次分析-灰色理论的评估模型应用范围广泛，对数据的分布类型不予限制，评估结构清晰，分层次反映了发动机的可靠性状态。

关键词: 航空发动机；可靠性评估；灰色理论；数据融合

Abstract: A reliability index evaluation model was built on hierarchy analysis process theory through an evaluation method of twice distribution algorithm and gray theory. By the method，reliability index were divided into three levels: general level，hazard level and failure model level. The data of failure model level were fused through twin-distribution and weighted average methods. That of hazard level were done through hierarchy analysis and gray theory. Index of general were fused by single value method on the output of hazard level which were different gray vectors. The model was used to evaluate one turbofan engine，and the results show that the index can reflex the reliability state of engine.

Key words: Aero-engine；Reliability evaluation；Gray theory；Data fusion

王大伟,王　伟,冯振宇. 基于灰色理论的航空发动机可靠性指标评估方法[J]. 推进技术, 2014, 35(7): 874-881.

WANG Da-wei¹,WANG Wei^1,2,FENG Zhen-yu¹. Evaluation Method on Reliability Index of Aero-Engine[J]. Journal of Propulsion Technology, 2014, 35(7): 874-881.

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[16] Xu Zeshui.Research on Consistency of the Complex Interval Judgement Matrix in AHP [J].Journal of Systems Science and Systems Engineering, 2000, 9(2): 159-163.(编辑:史亚红)收稿日期:2013-05-30；修订日期:2013-07-03。基金项目:中央高校基本科研业务费资助项目(ZXH2012J003)；中国民航大学科研启动基金项目(2010QD08X)。作者简介:王大伟(1975—),男,博士,讲师,研究领域为发动机适航审定技术。E-mail:wdwcauc@163.com