摘要
文章阐述了故障树分析法(FTA)在汽车制动系统可靠性试验中的应用。采用演绎法建立以制动系功能失常为顶事件的故障树,进行定性和定量分析,运用故障树综合分析的计算机应用程序,找出系统失效的关键因素。准确地给出了制动系的累积失效概率及事件概率重要度等可靠性指标。在故障诊断中具有指导意义和使用价值,为汽车制动系可靠性设计工作奠定了基础。
The application of fault tree analysis in automotive braking system reliability test is described.Using deductive method to construct brake system abnormal function as the top events of the fault tree,and qualitative and quantitative analysis is conducted.Using fault tree the application program is analyzed.The key factor of system failure is found out.The cumulative failure probability and event probability importance of brake system is given.It has guiding significance and using value in fault diagnosis.And it lays a foundation for brake system reliability design.
出处
《汽车工程师》
2011年第6期56-59,共4页
Automotive Engineer
关键词
故障树
制动系
定量分析
定性分析
故障诊断
Fault tree
Brake system
Quantitative analysis
Qualitative analysis
Fault diagnosis
