摘要
事故树分析是安全系统工程中常用的一种分析方法,本文对某型舰载直升机系统的起落装置工作进行了原理分析,在此基础上建立了舰载直升机起落架收放系统的事故树,并根据各基本事件的发生概率,计算顶事件的发生概率。接着对各基本事件进行了结构重要度、概率重要度和关键重要度分析,进一步确定了系统的薄弱环节,从而确定了安全投资方向。
Analysis of fault tree is a common analysis method in safety system engineering. This text is carrying on the principle analysis to the landing gear device of the ship-based helicopter, the fault tree of draw and put system of undercarriage of the ship-based helicopter was built on this foundation. According to the probability occurring of the basic event, the probability occurring of the top event is calculated. Then structural importance degree, probability importance degree and pivotal importance degree are analysed. Therefore weak tache of the system and safety investment direction are confirmed.
出处
《飞机设计》
2010年第1期64-68,共5页
Aircraft Design
关键词
舰载直升机
事故树
顶事件
结构重要度
概率重要度
关键重要度
ship-based helicopter
fault tree
importance degree
pivotal importance degreetop event
structural importance degree
probability
