冲击条件下相关性竞争失效过程的系统可靠性建模

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (8) : 203-208.

论文

常春波1，2,曾建潮2

作者信息 +

Reliability modeling for dependent competing failure processes subject to -shock

CHANG Chun-bo 1,2 ZENG Jian-chao 2

Author information +

文章历史 +

摘要

研究系统受到冲击时，考虑系统自然退化和冲击两个竞争性失效过程间具有相关性时，系统可靠性的建模问题。相关性一方面表现为冲击造成系统退化量的增加，另一方面表现为系统的自然退化程度对冲击结果的影响。假设系统因冲击而失效的过程是冲击过程，通过系统自然退化过程和冲击过程的分布函数，导出了系统的可靠度函数，建立了系统可靠度模型的一般形式，并给出一种特例的具体形式，最后利用文献中的具体参数进行仿真，以验证模型的正确性和有效性。

Abstract

The system reliability modeling was studied, considering the correlation between two s-dependent competing failure processes including degradation and shock when system subject to -shock. On the one hand, shock process causes the additional abrupt degradation; on the other hand the degradation of the system impacts the result of the shock process. Assume that the system is subject to -shock process, based on the distribution functions of the system natural degradation process and the shock process, the system's reliability function is derived. The general form of the system's reliability model is presented and one of specific form is given. Finally the simulation is preformed using parameters in the literature. And simulation results show the correctness and validity of the models.

导出引用

常春波1，2,曾建潮2. 冲击条件下相关性竞争失效过程的系统可靠性建模[J]. 振动与冲击, 2015, 34(8): 203-208

CHANG Chun-bo 1,2 ZENG Jian-chao 2 . Reliability modeling for dependent competing failure processes subject to -shock[J]. Journal of Vibration and Shock, 2015, 34(8): 203-208

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