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深入研究二元决策图理论,对火箭发动机测试发射中出现的系统故障进行定性分析,求出所有最小割集,通过系统故障树定量计算,确定最小割集诊断重要度和组成单元诊断重要度,依据最小割集及其组成单元发生的概率,确定系统故障排查诊断顺序,有效缩短系统故障诊断时间,降低试验安全隐患。
In-depth study of binary decision-making graph theory, qualitative analysis of the system failure occurred in the rocket engine test launch, find all the minimum cut set, through the system fault tree quantitative calculation to determine the minimum cut set diagnosis importance and component unit diagnosis importance, According to the probability of the minimum cut set and its constituent units, the sequence of system trouble shooting diagnosis is determined, the system fault diagnosis time is shortened effectively and the potential safety hazard of the test is reduced.