• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2008, Vol. 30 ›› Issue (10): 108-112.

• 论文 • 上一篇    下一篇

离散时间单重休假冷储备系统的可靠性分析

余妙妙[1] 唐应辉[2] 陈胜兰[3]   

  • 出版日期:2008-10-01 发布日期:2010-05-19

  • Online:2008-10-01 Published:2010-05-19

摘要:

利用离散向量Markov过程方法研究了离散时间单重休假两同型部件冷储备可修系统。在部件寿命服从几何分布,修理时间和修理工休假时间服从一般离散型概率分布的假定下,引入修理时间和休假时间尾概率,求得了系统的稳态可用度、稳态故障频度、待修概率、修理工空闲概率和休假概率,以及首次故障前平均时间等可靠性指标。

关键词: 单重休假 冷储备可修系统 离散向量Markov过程方法 可靠性指标

Abstract:

By applying the Markov process method for discrete vectors, a discrete-time two-unit cold standby repairable system with single vacations is studied in this paper. Under the assumption that life time has an geometric distribution, while the repair time and the vacation time have general discrete proba bility distributions, through introducing the tail probability of the repair time and the vacation time, the steady-state availability, the steady-state  failure frequency, the probability of waiting to repair, the probability of the repairman's idle state, the probability of the vacation state and the   mean time prior to the first failure are obtained.

Key words: single vacation, cold standby repairable system, the Markov process method for discrete vect ors, reliability indices