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事故树分析是安全系统工程学中采用较广泛的一种归纳分析方法,是由决策树中演化而来的,简称“FTA”。用这种方法能对各种系统的危险性进行预测、判断和评价分析,对导致事故发生的多种因素及其逻辑关系做出全面描述。同时又能够定性定量评价大规模潜在系统的危险性。有了这些分析和判断就可以采取相应的技术措施来消除危险或者限制事故发生的范围,把事故缩小到最低限度。
Fault tree analysis is a widely used inductive analysis method in safety system engineering. It evolved from a decision tree, referred to as “FTA” for short. This method can be used to predict, judge and evaluate the risks of various systems and provide a comprehensive description of the many factors that lead to the accident and their logical relations. At the same time, it can qualitatively and quantitatively evaluate the danger of large-scale potential systems. With these analyzes and judgments, the corresponding technical measures can be taken to eliminate the danger or limit the scope of the accident and reduce the accident to a minimum.