劣化系统周期预防性维修策略的优化  

Optimization of periodic preventive maintenance policies for deteriorating repairable system

作　　者：黄傲林[1] 李庆民[2] 黎铁冰[1] 毛盾[1] 

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033 [2]海军工程大学兵器工程系,湖北武汉430033

出　　处：《系统工程与电子技术》2014年第6期1103-1107,共5页Systems Engineering and Electronics

基　　金：总装预研基金项目资助课题

摘　　要：以长期运行费用率为评估指标,研究了劣化系统的周期预防性维修策略。假定开展的周期预防性维修介于最小维修和完全维修之间,维修间隔期间的故障过程用非齐次泊松过程进行描述,在此基础上采用比例寿命回退模型对预防性维修效果进行建模,给出了最佳预防性维修周期T和预防性维修次数N的计算方法以及参数应当满足的条件,同时结合实际情况给出了(N,T)策略的优化求解算法,最后通过数值算例,验证了所提方法的可行性。The periodic preventive maintenance policy for a deteriorating repairable system is studied.Preventive maintenance actions restore the system to a condition between as good as new and as bad as immediately before the maintenance action.The breakdown process during the preventive maintenance actions is supposed to follow a nonhomogeneous Poisson process.The proportional age setback model is used to measure the quality of the maintenance actions.The expressions for the optimal preventive maintenance period T and the count of preventive actions N are derived.Conditions are given under which a unique optimal policy exists.A practical algorithm is proposed to get the optimal （N ,T）policy.Numerical examples validate the algorithm.

关 键 词：劣化系统 周期性预防维修 非齐次泊松过程 比例寿命回退模型 

分 类 号：O175.3[理学—数学]