摘要
利用概率图法识别了故障-安全结构危害及其危险输出,构建了反应式和2oo2组合式故障-安全结构安全性框图,推导出2种结构危害率准确计算和实用化计算公式,并给出了仿真计算实例。通过仿真计算,分析了2种计算公式在一定条件下的一致性及其局限性,为故障-安全结构危害率计算提供了有效方法。
The probability diagram method is used to identify the fault-safe structure,hazards and their hazard outputs,and the safety block diagrams of reactive and 2oo2 combined fault-safe structures are constructed.The accurate and practical formulas for calculating the hazard rate of two kinds of structures are deduced,and the simulation calculation examples are given.Through simulation calculation,the consistency and limitation of the two formulas under certain conditions are analyzed,providing an effective method for calculating the hazard rate of fault-safe structure.
出处
《现代城市轨道交通》
2019年第3期59-63,共5页
Modern Urban Transit
关键词
轨道交通
故障-安全结构
概率图法
危害率
rail transit
fault-safe structure
probability diagram
hazard rate
