上海交通大学学报(英文版) ›› 2015, Vol. 20 ›› Issue (4): 500-507.doi: 10.1007/s12204-015-1657-0

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Reliability Analysis for the Competing Failure with Probabilistic Failure Threshold Value and Its Application to the k-out-of-n Systems

YUAN Rong1,2 (袁 容), LI Hai-qing2* (李海庆), HE Li-ping2 (何俐萍), GAO Hui-ying2 (高会英)   

  1. (1. School of Mechanical Engineering, Chengdu University, Chengdu 610106, China; 2. School of Mechatronics Engineering, University of Electronic Science and Technology, Chengdu 611731, China)
  • 发布日期:2015-08-05
  • 通讯作者: LI Hai-qing (李海庆) E-mail:lihaiqing27@163.com

Reliability Analysis for the Competing Failure with Probabilistic Failure Threshold Value and Its Application to the k-out-of-n Systems

YUAN Rong1,2 (袁 容), LI Hai-qing2* (李海庆), HE Li-ping2 (何俐萍), GAO Hui-ying2 (高会英)   

  1. (1. School of Mechanical Engineering, Chengdu University, Chengdu 610106, China; 2. School of Mechatronics Engineering, University of Electronic Science and Technology, Chengdu 611731, China)
  • Published:2015-08-05
  • Contact: LI Hai-qing (李海庆) E-mail:lihaiqing27@163.com

摘要: A method for reliability analysis of the competing failure with the probabilistic failure threshold value not the fixed threshold value is presented, which involves the random shocks and the degradation is independent and dependent respectively. Specifically, for the dependent condition, the effect due to the random shocks on the degradation is considered with a damage factor. In addition, the dependent competing failure model is applied to the reliability analysis of the k-out-of-n systems. Finally, two studied cases are presented to illustrate the proposed method, and the results show the proposed method is reasonable.

关键词: competing failure, random shocks, degradation, probabilistic failure threshold, k-out-of-n systems

Abstract: A method for reliability analysis of the competing failure with the probabilistic failure threshold value not the fixed threshold value is presented, which involves the random shocks and the degradation is independent and dependent respectively. Specifically, for the dependent condition, the effect due to the random shocks on the degradation is considered with a damage factor. In addition, the dependent competing failure model is applied to the reliability analysis of the k-out-of-n systems. Finally, two studied cases are presented to illustrate the proposed method, and the results show the proposed method is reasonable.

Key words: competing failure, random shocks, degradation, probabilistic failure threshold, k-out-of-n systems

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