A multi-state shock model with mutative failure patterns

A multi-state shock model with mutative failure patterns
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具有突变失效模式的多状态冲击模型

DOI:
10.1016/j.ress.2018.05.014
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发表时间:
2018-10
影响因子:
8.1
通讯作者:
Cai Kui
Cai Kui
中科院分区:
工程技术1区
文献类型:
--
作者:
Zhao Xian;Wang Siqi;Wang Xiaoyue;Cai Kui

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在本文中,为了适应多状态系统在状态变差时更有可能发生故障的已知事实,提出了多状态冲击模型,其中系统故障模式对于不同状态是可变的。冲击按震级分为I型、II型和III型。 III 型冲击会对系统产生破坏性影响,一旦发生就会导致完全故障。 II 型冲击会触发系统降至较低状态。当II型冲击的累加次数超过阈值时,系统完全失效。 I 型冲击对于不同的系统状态有不同的影响。如果 I 型冲击的累积次数超过阈值,则系统完全失效,该阈值随着系统状态的降低而减小。当连续冲击之间的到达时间遵循共同的连续相型分布时,可以导出每个系统状态结束之前的持续时间、系统的寿命和剩余寿命的分布。针对新模型的特点,提出了三种不同的替换策略,并构建了相应的优化模型以获得最优数量。
In this paper, to accommodate the known fact that a multi-state system is more likely to fail when its state gets worse, a multi-state shock model is proposed, in which the system failure patterns are mutative for different states. Shocks are classified into type I, type II and type III by magnitude. A type III shock has a destructive effect on the system and causes a complete failure whenever it occurs. A type II shock triggers the system down to a lower state. The system completely fails when the additive number of type II shocks exceeds a threshold. A type I shock has different effects for different system states. The system completely fails if the cumulative number of type I shocks exceeds a threshold which decreases as the system state gets lower. Distributions of the lasting time until the end of each system state, the lifetime and the residual lifetime of the system are derived when the interarrival times between successive shocks follow a common continuous phase-type distribution. Three different replacement policies are proposed to fit the characteristic of the new model, and corresponding optimization models are constructed to gain the optimal quantities.
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