寿命服从PH分布的冷贮备可修系统

Cold Standby Repairable System of Life Obeying PH Distribution

研究了由两个不同部件组成的冷贮备系统。假定部件的工作时间服从的是PH分布,且假定部件能够修复如新,部件失效后的修理时间服从指数分布。利用引进变量法、广义的马尔可夫过程和PH分布的性质,得到了系统的瞬时概率分布、系统首次故障前的平均时间、系统稳态概率分布等可靠性指标的Laplace变换表达式。

In this paper,a two-different component of cold standby system was studied. In the system,the life distribution was PH distributions,and the repair time of the component was exponential distributions. The component was assumed that it was as good as new. By using the supplementary variable,the generalized Markov progress and the nature of PH distributions,some reliability indexes of the Laplace transformation for the instantaneous probability distribution,the instantaneous availability,the smooth probability distribution and the steady availability are obtained.