安全系统事故树分析软件研究

Study on software of accident tree analysis of safety system

介绍了系统安全分析中事故树分析软件的自动化程序设计原理与方法,该软件实现了事故树的自动绘制、化简,进行定性分析,自动求解最小割集,绘制事故树的等效树,求解结构重要度,进行顶上事件发生概率、各基本事件的概率重要度、临界重要度的定量分析求解等功能,能够找出控制事故发生的最有效途径。该软件具有功能性强、直观形象、可操作性强的优点,对于事故的分析与评价具有较高的应用价值。

The automation program design principle and the method of analysis software of the accident trees in the system safety analysis are introduced. In the software, some functions are realized as follows: the automatic drawing of accident tree,qualitative analysis,automatic resolution of minimal cutset,automatic drawing of equivalent tree,resolution of structure importance degree and incidence of top accident,quantitative analysis of probability importance degree and critical importance degree and finding the most effective measure controlling happening of accidents. The software has advantages such as strong function、direct-vision and convenient operation. And it also had a higher application value for analysis and evaluation of the accident.