基于FTA-AHP的飞机系统综合灵敏度评价分析

Translated title of the contribution: Analysis of comprehensive sensitivity evaluation of aircraft system based on FTA-AHP

Yunwen Feng, Zhicen Song, Cheng Lu, Xiaofei Liu

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Aiming at the lack of unified evaluation index for the sensitivity analysis of fault tree of the system, the Analytic Hierarchy Process(AHP) is introduced into Fault Tree Analysis(FTA), and an FTA-AHP method is proposed to generate the comprehensive sensitivity evaluation index of the system. Firstly, the reliability analysis model of the system fault tree is established, and three indexes including probabilistic sensitivity, relative sensitivity and structural sensitivity, are calculated by using the traditional sensitivity analysis method. Then, combined with the analytic hierarchy process, the weight coefficients were determined according to the sensitivity analysis results above and the type of the minimum cut set, and the comprehensive sensitivity evaluation and analysis of the system fault tree were carried out. Finally, the case verification shows that compared with the traditional method, the comprehensive sensitivity ranking results have less repeatability, and the factors are considered comprehensively, which is convenient for decision makers to make judgment. The synthetic sensitivity evaluation model developed provides support for system reliability analysis.

Translated title of the contributionAnalysis of comprehensive sensitivity evaluation of aircraft system based on FTA-AHP
Original languageChinese (Traditional)
Pages (from-to)971-977
Number of pages7
JournalXibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
Volume39
Issue number5
DOIs
StatePublished - Oct 2021

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