Importance measure based optimal maintenance policy for deteriorating components  

作　　者：祁鑫 Zuo Decheng Zhang Zhan Yang Xiaozong 

机构地区：[1]School of Computer Science and Technology,Harbin Institute of Technology

出　　处：《High Technology Letters》2014年第1期42-47,共6页高技术通讯（英文版）

基　　金：Supported by the National High Technology Research and Development Programme of China(No.2008AA01A204);the National Natural Science Foundation of China(No.61003047,61173020);International Science & Technology Cooperation Project(No.2010DFA14400)

摘　　要：An optimal maintenance policy tor deteriorating components based on quasi renew-process model is presented. In this policy, the first N - 1 failures of a component are maintained by repairs and the N＇h failure is maintained by replacement. The policy takes replacement actions at component lev- el by considering the fact that more and more components are designed to be field replaceable and maintenance activities are setting free from system halt. Concerning system structure impact, impor- tance measure is employed in the optimization procedure which aims at maximizing the long-rnn prof- it per unit time. Two example series parallel systems are taken to illustrate the policy and it is proved to work well. According to importance analysis, components are classified into important ones and unimportant ones based on the system behavior under their failures. Simulation results show that the presented policy makes a clear distinction between them and takes effective mainte- nance actions to compensate the deteriorating of components.An optimal maintenance policy for deteriorating components based on quasi renew-process model is presented.In this policy,the first N-1 failures of a component are maintained by repairs and the N^(th) failure is maintained by replacement.The policy takes replacement actions at component level by considering the fact that more and more components are designed to be field replaceable and maintenance activities are setting free from system halt.Concerning system structure impact,importance measure is employed in the optimization procedure which aims at maximizing the long-run profit per unit time.Two example series parallel systems are taken to illustrate the policy and it is proved to work well.According to importance analysis,components are classified into important ones and unimportant ones based on the system behavior under their failures.Simulation results show that the presented policy makes a clear distinction between them and takes effective maintenance actions to compensate the deteriorating of components.

关 键 词：deteriorating components quasi-renew process maintenance policy series paral-lel systems importance measure 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]