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首页> 外文期刊>International Journal of Reliability and Applications >Stochastic analysis of a non-identical two-unit parallel system with common-cause failure, critical human error, non-critical human error, preventive maintenance and two type of repair
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Stochastic analysis of a non-identical two-unit parallel system with common-cause failure, critical human error, non-critical human error, preventive maintenance and two type of repair

机译：具有常见原因故障，严重人为错误，非严重人为错误，预防性维护和两种维修的不相同的两单元并行系统的随机分析

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This paper investigates a mathematical model of a system composed of two non-identical unit parallel system with common-cause failure, critical human error, non-critical human error, preventive maintenance and two type of repair, i.e. cheaper and costlier. This system goes for preventive maintenance at random epochs. We assume that the failure, repair and maintenance times are independent random variables. The failure rates, repair rates and preventive maintenance rate are constant for each unit. The system is analyzed by using the graphical evaluation and review technique (GERT) to obtain various related measures and we study the effect of the preventive maintenance preventive maintenance on the system performance. Certain important results have been derived as special cases. The plots for the mean time to system failure and the steady-state availability A (∞)of the system are drawn for different parametric values.
机译：本文研究了一个系统的数学模型，该系统由两个具有相同原因的非相同单元并行系统组成：常见原因故障，严重人为错误，非严重人为错误，预防性维护和两种维修方式，即便宜和昂贵。该系统用于在随机时期进行预防性维护。我们假设故障，维修和维护时间是独立的随机变量。每个单元的故障率，维修率和预防性维护率是恒定的。通过使用图形评估和审查技术（GERT）对系统进行分析，以获得各种相关措施，我们研究了预防性维护预防性维护对系统性能的影响。作为特殊情况，得出了某些重要结果。针对不同的参数值绘制了系统故障的平均时间和系统的稳态可用性A（∞）的图。

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