小子样舰船可靠性评估方法研究

小子样舰船大型复杂系统的可靠性评估方法一直是个难题．根据任务剖面绘制系统故障树，找出系统最小割集．最小割集中的设备之间视为并联关系，最小割集之间视为串联关系，将故障树转化为只有二级的相当故障树，从而将系统可靠性评估模型简化．把采集处理的底事件数据（等效任务数、故障数、工作时间）代入计算模型中，得到了系统可靠性置信下限，并给出了不同分布类型（主要是二项分布）舰船设备数据转化为指数分布数据的方法．

Research on evaluation method of small-sample-warship reliability

Reliability evaluation of small-sample-warship complex system is always a difficult problem.Firstly,this paper draws system fault tree according to assignment,and finds system minimal cut sets.Secondly,it regards the relations between equipments in minimal cut set as parallel,and regards the relations between minimal cut sets of complex system fault tree as series.Then the fault tree is transformed into corresponding fault tree with only two-grades,and the reliability evaluation model of system is simplifie...