针对现有故障预测与健康管理(prognostics and health management，PHM)系统难以给出实时、动态健康管理决策结果的问题，综合考虑不完善维修、多资源约束(人力、时间、成本等)、备件订购、任务规划等因素，基于选择性维修理论，建立了动态健康管理决策模型，得到了最优方案，包括部件最优维修对策、维修任务分配、备件订购数量、最优任务规划等。最后，结合算例，分析了维修人员数量、备件数量、任务规划等因素对动态健康管理决策结果的影响，验证了所提模型的有效性，对于指导装备健康管理实践、提升保障质效具有重要的意义。
Dynamic health management decision-making for fleet based on selective maintenance
Prognostics and health management(PHM),as an advanced predictive maintenance method,has become a hot research topic of equipment support.To solve the problem that the existed PHM systems cannot yield dynamic and timely results of health management decision-making,a novel selective maintenance(SM)based model was developed to obtain the optimal decisions,including the optimal maintenance strategies,maintenance task assignment,quantity of spare part ordered,optimal equipment task scheduling,etc.In this model,the imperfect maintenance options,multiple resource constraints,such as personnel,time,cost,etc.,spare part ordering and task scheduling,were considered simultaneously.Based on the theory of selective maintenance,a dynamic health management decision-making model was established,and an optimal scheme,which includes optimal maintenance strategies,maintenance task scheduling,number of spare spart ordering,and optimal task planning,is obtained.Finally,an illustrative example was presented to verify the effectiveness of the proposed model,and the effect of the maintenance personnel number,spare part number and mission scheduling on decisions were analyzed.The results showed that the proposed model was of great significance for supporting equipment health management practice and improving the maintenance quality and effectiveness.
prognostics and health management(PHM)health management decision-makingselective maintenancefleetdynamic decision-makingremaining useful life prediction
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