基于功能模拟的系统安全分析

对于复杂的工程系统，其安全分析更多的是依赖历史经验和专家知识，难以保证系统性和可操作性。对以系统工程的思想解决安全分析的系统性问题进行了分析，提出了运用功能模拟的目标树一成功树技术建立完整的系统模型，以支持安全分析各项目类型的实施及其分析技术的综合运用。主要介绍了功能模拟的概念和目标树一成功树建模技术以及安全分析项目类型与分析技术，在此基础上，给出了1个基于功能模拟目标树一成功树模型的系统安全分析基本框架。应用此框架，有助于在实际工程中指导系统性的安全分析。

System Safety Analysis Based on Functional Modeling

The safety analyses on the actual complex engineer in g systems would be usually performed by means of the history experiences and the knowledge of the experts and as a result,it is difficult to ensure the systemat ization and operational effectiveness.And the system safety analysis based on f unctional modeling is put forward.Some techniques are introduced,such as the con cept of functional modeling,the goal tree-success tree modeling technique,the it em types and techniques of safety analysis and a basic framework for the system safety analysis is presented,based on the goal tree-success tree model.It is hel pful to guide safety analysis in the actual engineering by using this framework.