运用功能的故障模式、影响、危害性分析以及故障树综合分析列车安全性

Functional FMECA and FTA Analyzing the Safety of the Train Synthetically

故障树分析(FTA)方法是对列车进行安全性分析的一种常用方法。将功能的故障模式、影响及危害性分析(FMECA)与FTA结合应用,首先进行功能FMECA,得出FTA的顶事件,再应用FTA从上至下进行演绎,两种方法相辅相成,使得列车安全性分析更为直观、易于理解。

Fault tree analysis （FTA） is a common method for analyzing the train safety. Applying the functional FMECA and FTA synthetically, two methods could com- plement each other： carrying out the functional FMECA a- nalysis first to obtain the top events of FTA, then deduc- ting from top to down by FTA, thus the analysis of train safety will become more intuition and understandable.