کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
803394 | 904641 | 2009 | 6 صفحه PDF | دانلود رایگان |
In this paper, a deteriorating cold standby repairable system consisting of two dissimilar components and one repairman is studied. For each component, assume that the successive working times form a decreasing geometric process while the consecutive repair times constitute an increasing geometric process, and component 1 has priority in use and repair. Under these assumptions, we consider a replacement policy NN based on the number of repairs of component 1 under which the system is replaced when the number of repairs of component 1 reaches NN. Our problem is to determine an optimal policy N*N* such that the average cost rate (i.e. the long-run average cost per unit time) of the system is minimized. The explicit equation of the average cost rate of the system is derived and the corresponding optimal replacement policy N*N* can be determined analytically or numerically. Finally, a numerical example with Weibull distribution is given to illustrate some theoretical results in this paper.
Journal: Reliability Engineering & System Safety - Volume 94, Issue 11, November 2009, Pages 1782–1787