异物侵限监测子系统运用失效的故障树分析

异物侵限监测子系统是高速铁路自然灾害及异物侵限监测系统的重要组成部分,对高速铁路运行安全起到了重要的保障作用。本文采用故障树分析方法,通过对异物侵限监测子系统中可能发生的重要或影响安全的故障进行辨识,建立了异物侵限监测子系统故障树模型。通过对最小割集和结构重要度的分析,将各设备故障按其影响程度重要程度进行了排序,并用故障树分析方法进行了评价,所得结论可供系统完善和运营维护参考。

Fault Tree Analysis for failure of Foreign Object Invasion Monitoring Subsystem during operation period

As an important part of High Speed Railway Natural Disaster and Foreign Object Invasion Monitoring System, the Foreign Object Invasion Monitoring Subsystem played an important part for the safety of high-speed-railway's operation. In this article, Fault Tree Analysis(FTA) was applied to establish the analytical models for the failure of Foreign Object Invasion Monitoring System based on the analysis of the failure factors of the Subsystem. Through analyzing the importance degree of the minimum cut sets and structure, the failure factors were sorted according to their influence level, and evaluated by FTA. The results obtained can be used for reference to improve the operation and maintenance of the Subsystem.