摘要
起落架液压系统是飞机起落架系统中的重要组成部分,其可靠性的高低直接影响着飞机的安全。在对某型武装直升飞机起落架液压系统故障概率分析的基础上,将模糊数学和故障诊断方法相结合,建立了液压系统的模糊故障树。通过对其进行失效分析,推导出直升飞机起落架故障顶事件发生的模糊概率及其隶属函数分布,为起落架的维修和保养提供了理论依据。
After analyzing fault probalility on various parts of hydraulic system of helicopter landing-gear and combming fuzzy theory with fault tree analysis, a fuzzy fault tree of the hydraulic system of helicopter landing-gear was built and its fault probability was analyzed. The distribution of the membership function and the fuzzy probability value of the top event when hydraulic system of helicopter landing-gear cannot work was derived. The theoretical foundation was supplied for maintaining the system.
出处
《机床与液压》
北大核心
2007年第5期214-216,219,共4页
Machine Tool & Hydraulics
关键词
起落架
液压系统
模糊故障树
故障诊
Landing-gear
Hydraulic system
Fuzzy fault tree
Fault diagnosis
