一种新型的多阶段任务系统可靠性分析方法

A New Reliability Analysis Method for PMS

摘要:针对多阶段任务系统难以确定阶段间的状态转移关系及转移率的问题,提出一种新型的多阶段任务系统可靠性分析方法。通过将可变结构与可变成功标准问题分解为6种标准情况,实现了模型的通用化,解决了确定阶段间的状态转移关系问题。通过引入随机阶段间隔这个概念,使此算法既可以用来处理固定的阶段周期,同时又可对随机的阶段周期进行处理,解决了确定阶段间的状态转移率的问题。最后,通过对一个实例的计算和比对说明了算法的计算过程,证明了算法的有效性。

A new reliability analysis method for Phased - Mission System is presented to find the transfer relation and transfer rate among the states in different phases in PMS. Through classifying the variable configurations and changeable success - criteria into six standard cases, its model becomes more general for solving the problem of finding the transfer relation among the states in different phases in PMS. By using the concept of random phased - duration, the duration of any phase can use deterministic or random models. And the problem of finding the transfer rate among the states in different phases in PMS is solved. At last, an example is used to show the computing technique and testify its validity.