基于FTA的地铁车门故障诊断研究  

Fault Diagnosis Research for Metro Door Based on FTA

作　　者：夏军[1] 邢宗义[1] 王晓浩[1] 

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《组合机床与自动化加工技术》2014年第4期76-78,共3页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家863课题(2011AA110501);国家科技支撑计划项目(2011BAG01B05)

摘　　要：车门系统是地铁列车的关键子系统,应用故障树分析FTA方法对地铁车门系统进行故障诊断研究有助于缩短车门检修时间和提高车门工作可靠性。在分析地铁车门系统结构和工作原理的基础之上,选取车门无法自动开门故障作为顶事件建立故障树,采用下行法求最小割集并进行定性与定量的综合分析,从而得出了EDCU、关闭行程开关、螺母组件、丝杆和中间解锁组件对车门无法自动开门故障的影响较大的诊断结果,为地铁车门系统的故障诊断提供辅助参考决策。Door system is a key subsystem of metro train, so the FFA method is applied to carry out the fault diagnosis research for reducing door maintenance time and improving door reliability. On the basis of analyzing the structure and working principle of metro door system, the disabled open fault of door system is selected as a top event to establish the fault tree. The minimum cut set is calculated by the Fussell-Vesely method, then the qualitative and quantitative analysis of FTA are carded out, so , so it can be concluded that EDCU , limit switch, nut component , screw and middle unlocking component have a great damage on door disabled open fault. The obtained results can be used for fault diagnosis of the metro door system.

关 键 词：故障树 最小割集 故障诊断 

分 类 号：TH165.3[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]