在定量识别多次致命性故障状态的基础上 ,通过对发生致命性故障事件和修复事件的描述 ,提出了复杂可修系统可信度计算的一般方法 ,同时详细地推导致命性故障率和任务修复率为常数时复杂可修系统可信度的计算公式 ,并且展开讨论了发生多次致命性故障时复杂可修系统可信度的建模问题 ;最后以实例进行了可信度建模的工程化验证 Based on the quantitative identification of multiple fatal failures, a general method of calculating the credibility of complex repairable systems is proposed by describing the occurrence of fatal faults and repairs, and at the same time, the fatal failure rates and tasks are deduced in detail When the repair rate is constant, the formula for calculating the credibility of the complex repairable system is discussed. Then, the problem of modeling the reliability of the complex repairable system when multiple fatal failures occur is discussed. Finally, the reliability model Engineering verification