系统安全风险描述研究

Research on Description of System Safety Risk

从安全风险研究角度系统描述部件状态、部件状态向量、系统状态、风险和风险矩阵、风险分类、系统状态风险、风险状态集、风险状态概率、风险转移概率、临界状态、关键部件和风险重要度,对系统安全风险有了更加全面深刻而准确的呈现,得到基于部件状态向量的系统安全风险描述,给出系统处于低中高风险的概率、风险转移临界集和安全风险重要度的计算方法。

From the angle of safety risk, the paper firstly describes the definitions of component state, component state vector, system state, risk and risk matrix, risk classification, system state risk, risk state sets, risk transition probability, critical state, critical components and risk importance, which makes the understanding of system safety risk more comprehensive, profound and accurate. Then, based on analysis, the system safety risk description based on components vector is given, and calculation methods for risk probability of system, risk transition critical sets and safety risk importance are presented.