摘要
多态故障树分析法是多态系统性能安全分析中的重要方法之一,多态故障树分析法可建立系统故障模型,并对系统组件进行定量分析,识别系统薄弱环节。在对多态多值决策图及重要度理论研究的基础上,进一步研究了综合重要度(Integrated Importance Measure,IIM)的物理意思与计算方法,分析了以组件分布概率为自变量的系统性能期望函数梯度与综合重要度间的几何关系,提出基于综合重要度的系统性能梯度分析方法。应用于滚焊机多态焊接系统分析,证明该方法的方便有效性。
Fault tree analysis is one of the most important analysis methods in safety systemengineering. It can be used to establish the system analysis model and identify the weak link of the system. The physical meaning and calculation methodof integrated importance measure(IIM) is further studied based on the theoretical study of multi-statemulti-valued decision diagram andimportant measures. The paper analyses the geometric relationship between IIM and the gradient of the system performance. And the system performance gradient method was developed based on integrated importance measure. The analysis for the multi-state welding system of rolling welder proves that the method is convenient and effective.
作者
齐继阳
刘菲菲
QI Ji-yang;LIU Fei-fei(School of Mechanical Engineering,Jiangsu University of Science and Technology,Jiangsu Zhenjiang 212003,China)
出处
《机械设计与制造》
北大核心
2019年第1期264-267,271,共5页
Machinery Design & Manufacture
基金
江苏省产学研前瞻性联合研究项目(BY2013066-02)
关键词
多态故障树
多态多值决策图
综合重要度
梯度
Multi-state Fault Tree
Multi-state Multi-valued Decision Diagram
Integrated Importance Measure
Gradient
