两部件可修系统的随机比较
Stochastic Comparisons of Two-Units Repairable Systems
摘要：
考虑两部件可修系统的两个模型：冷贮备系统和温贮备系统。我们假设这些部件的寿命和维修时间都是独立的指数分布的随机变量。利用随机序，我们比较了系统在不同参数假设下的寿命的指数分布。我们还考虑了一个冷贮备系统，其单位的寿命和维修时间不一定是指数分布。
英文摘要：
We consider two models of two-units repairable systems: cold standby system and warm standby system. We suppose that the lifetimes and repair times of the units are all independent exponentially distributed random variables. Using stochastic orders we compare the lifetimes of systems under different assumptions on the parameters of exponential distributions. We also consider a cold standby system where the lifetimes and repair times of its units are not necessarily exponentially distributed.
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