Stochastic Comparisons of Lifetimes of Used Standby Systems

被引:2
|
作者
Kayid, Mohamed [1 ]
Alshehri, Mashael A. [2 ]
机构
[1] King Saud Univ, Coll Sci, Dept Stat & Operat Res, Riyadh 11451, Saudi Arabia
[2] King Saud Univ, Coll Business Adm, Dept Quantitat Anal, Riyadh 11362, Saudi Arabia
关键词
likelihood ratio order; usual stochastic order; cold standby system; log-concave; log-convex; lifetime; MEAN RESIDUAL LIFE; RELIABILITY-ANALYSIS; CONVOLUTIONS; OPTIMIZATION; REDUNDANCY; PRESERVATION; ORDER;
D O I
10.3390/math11143042
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this paper, we first establish upper stochastic bounds on the lifetime of a used cold standby system with arbitrary age, using the likelihood ratio order and the usual stochastic order. Then, stochastic comparisons are made between the lifetime of a used cold standby system with age t and the lifetime of a cold standby system consisting of used components with age t using the likelihood ratio order and the usual stochastic order. We use illustrative examples to explore the results presented.
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页数:17
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