Stochastic Comparisons Between Lifetimes of Reliability Systems with Exchangeable Components

被引:9
作者
Koutras, Markos V. [1 ]
Triantafyllou, Ioannis S. [1 ]
Eryilmaz, Serkan [2 ]
机构
[1] Univ Piraeus, Dept Stat & Insurance Sci, Piraeus, Greece
[2] Atilim Univ, Dept Ind Engn, Ankara, Turkey
关键词
Hazard rate ordering; Reliability systems; Samaniego's signature; Minimal and maximal signatures; OUT-OF-N; REVERSED HAZARD RATE; COHERENT SYSTEMS; K SYSTEMS; SIGNATURE;
D O I
10.1007/s11009-014-9433-4
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
In this article we present several results pertaining to the stochastic comparison of the lifetimes of two reliability systems with exchangeable components. More specifically, we provide signature-based sufficient and necessary conditions for establishing hazard rate and reverse hazard rate orderings. Finally, focusing on the class of consecutive-type systems, we illustrate how the general results can be exploited to deduce several stochastic orderings among members of this class.
引用
收藏
页码:1081 / 1095
页数:15
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