工作性能水平约束下多状态系统可靠性分析

Reliability Analysis of Multi-state System under the Constraint of Work Performance Level

在实际工程应用中,要考虑系统运行过程中可能会因为受各类外界因素(如温度、压力、流量、功率等)的影响而导致对系统性能需求不同;针对系统性能受工作需求性能水平约束的现象,对传统Markov过程进行改进,提出改进型Markov过程;在考虑工作需求性能水平约束的条件下,利用改进型Markov过程来分析多状态串并联系统的可靠性,并给出简单的实例分析;结果表明该方法与传统可靠性分析方法相比,大大降低了计算的复杂程度.

In practical engineering application,it is necessary to consider that the system performance may be affected by various factors such as temperature,pressure,flow,power and so on to cause different demands of system performance. According to the phenomenon that the system performance is constrained by the performance level of work requirements,the traditional Markov process is improved,and the improved Markov process is proposed. Under the condition of taking into account the performance level constraint,the improved Markov process is used to analyze the reliability of multi-state series parallel system,and a simple example analysis is given. The results show that compared with the traditional reliability analysis methods,this method greatly reduces the computational complexity.