基于状态维修的预防性维修策略优化模型研究
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摘要
基于状态的维修着眼于系统的具体运行状况,对被监测装备的真实状态进行评估,克服了维修的盲目性,可有效减少由于维修不足而引起的意外故障和由于维修过剩带来的资源浪费。提出一种基于状态的多部件系统非周期预防性维修计划的优化方法,引入"机会维修阈值"概念,优化不同维修方式转移概率的表达式,将多个维修作业按照机会维修阈值进行归并,运用马尔可夫决策过程理论,给出不同维修方式转移概率的表达式和目标函数,并进行算例分析。结果表明:提出的优化模型减少了预防性维修活动,节约了维修工时和经费,可为系统预防性维修策略决策提供参考。
Condition-based maintenance(CBM)is based on specific system operation condition to evaluate the real status of monitored equipment.CBM overcome the blindness of maintenance,and is able to effectively reduce accidental failures caused by insufficient maintenance and waste of resources by the excess of maintenance.A multi-unit system non-periodic preventive maintenance plan optimization method is proposed,which is based on the condition.The concept of"opportunity maintenance threshold"is introduced,and the expression of different maintenance mode transition probability is optimized.Multiple maintenance works are combined in accordance with the opportunity maintenance threshold.The expression of different maintenance mode transition probability and the objective function on the basis of Markov Decision Process Theory are proposed.Through the example analysis,the proposed optimization model can reduce the preventive maintenance activities,save maintenance time and funds,and provide reference for system preventive maintenance strategy decision.
Condition-based maintenance(CBM)is based on specific system operation condition to evaluate the real status of monitored equipment.CBM overcome the blindness of maintenance,and is able to effectively reduce accidental failures caused by insufficient maintenance and waste of resources by the excess of maintenance.A multi-unit system non-periodic preventive maintenance plan optimization method is proposed,which is based on the condition.The concept of"opportunity maintenance threshold"is introduced,and the expression of different maintenance mode transition probability is optimized.Multiple maintenance works are combined in accordance with the opportunity maintenance threshold.The expression of different maintenance mode transition probability and the objective function on the basis of Markov Decision Process Theory are proposed.Through the example analysis,the proposed optimization model can reduce the preventive maintenance activities,save maintenance time and funds,and provide reference for system preventive maintenance strategy decision.
引文
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[9]王辉,范秀敏,严隽琪.考虑机会维修的等风险预防性维修策略优化[J].机械设计与研究,2003,19(3):51-55.Wang Hui,Fan Xiumin,Yan Juanqi.Optimization of equally cumulative-hazard preventive maintenance strategy considering opportunity maintenance[J].Machine Design and Research,2003,19(3):51-55.(in Chinese)
[2]段学刚.航空电子装备维修概论[M].北京:国防工业出版社,2010.Duan Xuegang.Introduction to the maintenance of avionics equipment[M].Beijing:National Defense Industry Press,2010.(in Chinese)
[3]吕川.维修性设计分析与验证[M].北京:国防工业出版社,2011.LüChuan.Analysis and verification of maintainability design[M].Beijing:National Defense Industry Press,2011.(in Chinese)
[4]张宝珍.国外新一代战斗机综合保障工程实践[M].北京:航空工业出版社,2014.Zhang Baozhen.Practice of comprehensive support engineering for a new generation of fighter aircraft in foreign countries[M].Beijing:Aeronautical Industry Press,2014.(in Chinese)
[5]于永利,张柳.装备作战单元维修保障能力评估方法[M].北京:国防工业出版社,2015.Yu Yongli,Zhang Liu.Evaluation method of equipment combat unit maintenance support capability[M].Beijing:National Defense Industry Press,2015.(in Chinese)
[6]叶培钒.不完全维修前提下基于状态维修策略最优化模型研究[D].北京:清华大学,2012.Ye Peifan.Research on condition-based maintenance policy optimization under imperfect maintenance[D].Beijing:Tsinghua University,2012.(in Chinese)
[7]魏永合,刘雪丽,牛保国.基于故障预测的预防性维修策略优化模型[J].组合机床与自动化加工技术,2015,7(7):91-94,99.Wei Yonghe,Liu Xueli,Niu Baoguo.Preventive maintenance strategy optimization model based on fault prediction[J].Modular Machine Tool&Automatic Manufacturing Technique,2015,7(7):91-94,99.(in Chinese)
[8]王正元,陈智雄,曹继平,等.基于状态的单部件维修策略优化方法[J].计算机集成制造系统,2008,14(1):45-49.Wang Zhengyuan,Chen Zhixiong,Cao Jiping,et al.Optimal solution to condition-based maintenance strategy of single parts[J].Computer Integrated Manufacturing Systems,2008,14(1):45-49.(in Chinese)
[9]王辉,范秀敏,严隽琪.考虑机会维修的等风险预防性维修策略优化[J].机械设计与研究,2003,19(3):51-55.Wang Hui,Fan Xiumin,Yan Juanqi.Optimization of equally cumulative-hazard preventive maintenance strategy considering opportunity maintenance[J].Machine Design and Research,2003,19(3):51-55.(in Chinese)