An extended stochastic failure model for a system subject to random shocks

被引:14
作者
Cha, Ji Hwan [1 ]
Lee, Eui Yong [2 ]
机构
[1] Ewha Womans Univ, Dept Stat, Seoul 120750, South Korea
[2] Sookmyung Womens Univ, Dept Stat, Seoul 140742, South Korea
关键词
Extreme shock model; Poisson shock process; Failure rate increment; Baseline failure rate function; Compound failure rate function; Stochastic ordering; WEAR; ENVIRONMENT;
D O I
10.1016/j.orl.2010.06.004
中图分类号
C93 [管理学]; O22 [运筹学];
学科分类号
070105 ; 12 ; 1201 ; 1202 ; 120202 ;
摘要
In this article, a stochastic failure model for a system subject to a random shock process is studied. It is assumed that a fatal shock results in an immediate system failure, whereas a non-fatal shock may increase the susceptibility of the system to failure. The lifetime distribution of the system and its failure rate function are derived, and the effect of environmental factors on the failure process of the system is also investigated. Lifetimes of systems operated under different environmental conditions are stochastically compared. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:468 / 473
页数:6
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