基于FTA方法的某型飞机起落架故障诊断  

Fault Diagnosis of a Certain Aircraft Landing Gear Based on FTA

作　　者：李哲君 李锋[2] LI Zhe-jun;LI Feng(Jiangxi Helicopter Co.,Ltd.,Jingdezhen 333000,China;Xi'an Aeronautical Institute,Xi'an 710089,China)

机构地区：[1]江西直升机有限公司,江西景德镇333000 [2]西安航空学院,陕西西安710089

出　　处：《液压气动与密封》2024年第10期119-123,共5页Hydraulics Pneumatics & Seals

摘　　要：针对某型飞机起落架的一例典型故障,根据其工作原理图,采用故障树分析法(Fault Tree Analysis,FTA)对故障进行分析、诊断,建立了以故障现象为顶事件的故障树及故障结构函数,得到了故障现象对应的所有基本事件。再结合某单位统计的此类故障基本事件的先验概率,通过重要度计算得到了该故障现象的失效概率,制定了故障诊断流程,为该型飞机此类故障的高效诊断、分析、维护提供依据与参考。For a typical fault of a type of aircraft landing gear,based on its working principle,the fault tree analysis method was used to analyze and diagnose the fault.A fault tree and fault structure function with the fault phenomenon as the top event were established,and all basic events corresponding to the fault were obtained.Combined with the prior probability of the basic event of such faults calculated by a certain company,the failure probability of the fault phenomenon was calculated through importance,and a fault diagnosis process was developed to provide a basis and reference for the efficient diagnosis,analysis,and maintenance of such faults in this type of aircraft.

关 键 词：FTA 起落架 故障 诊断 

分 类 号：TH137[机械工程—机械制造及自动化] TP391[自动化与计算机技术—计算机应用技术]