Fault tree analysis of an aircraft flap system based on a non-probability model
ZHOU Changcong1, CHANG Qi1, ZHOU Chunping2, ZHAO Haodong1, SHI Zhuangke1
1. Institute of Aircraft Reliability Engineering, Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an 710129, China; 2. Key Laboratory for Airborne Hi-Performance Electro-Magnetic Window, RISAC, Jinan 250023, China
Abstract：A fault tree based system reliability method was developed to predict the failure probabilities of system components by a non-probability interval model. A non-probabilistic reliability index was developed which included reliability or safety criteria to evaluate the system reliability. Then, two sensitivity indices were developed to indicate the contribution of each basic event. This method was then used for a fault tree analysis of the unilateral asymmetric movement of an aircraft flap system. The results show that this method can accurately predict the system reliability and can accurately identify important events to provide references for optimizing the system reliability.
周长聪, 常琦, 周春苹, 赵浩东, 史壮科. 基于非概率模型的飞机襟翼故障树分析[J]. 清华大学学报（自然科学版）, 2021, 61(6): 636-642.
ZHOU Changcong, CHANG Qi, ZHOU Chunping, ZHAO Haodong, SHI Zhuangke. Fault tree analysis of an aircraft flap system based on a non-probability model. Journal of Tsinghua University(Science and Technology), 2021, 61(6): 636-642.
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2021, Vol. 61 
