独立元件组成的n中取k系统剩余寿命的年龄性质  

Aging Properties of the Residual Life Length of k-out-of-n Systems withIndependent Components

作　　者：王丰效[1] 

机构地区：[1]陕西理工学院数学系

出　　处：《纯粹数学与应用数学》2007年第2期183-188,共6页Pure and Applied Mathematics

基　　金：陕西省教育厅科研基金项目(06JK325);陕西理工学院科研基金项目(SLG0424)

摘　　要：研究了独立元件组成的n中取k系统的剩余寿命长度的年龄性质,该系统在时刻t<0有n-k个元件失效.对于几类寿命分布元件,讨论了元件仅仅独立的情形下,n中取k个系统剩余寿命的特征.The residual life length of a k-out-of-n system with only independent com-ponents, give that the （n-k-th failure has occurred at time t≥0, is investigated. Some aging notions are characterized in terms of dispersion-type varibility orders by using the residual lifetimes given the time of the （n-k）-th failure. These results extend and strengthen some known characterizations in the literature.

关 键 词：封闭性 DMRL IFR n中取k系统 NBUC NBUrh 增凸序 

分 类 号：O212.2[理学—概率论与数理统计]