多重故障并发下单部件系统视情维修建模与优化
收稿日期: 2012-04-17
修回日期: 2012-09-10
网络出版日期: 2013-03-29
基金资助
国防预研项目(51304010206,51327020105)
Condition-based Maintenance Modeling and Optimization for Single-unit System with Multiple Competing Processes
Received date: 2012-04-17
Revised date: 2012-09-10
Online published: 2013-03-29
Supported by
National Defence Pre-research Foundation of China (51304010206, 51327020105)
葛恩顺 , 李庆民 , 彭英武 , 王慎 . 多重故障并发下单部件系统视情维修建模与优化[J]. 航空学报, 2013 , 34(3) : 580 -587 . DOI: 10.7527/S1000-6893.2013.0095
In most practical situations of equipment work, the system does not only degrade with use and age, but is also subject to traumatic events or shocks which lead to a sudden failure; that is, system failure is due to both deterioration and shock events. Focusing on the actual problem of maintenance engineering, a new condition-based maintenance model is established based on the sequential inspection policy and multi-level control-limit rule for a single-unit system which is subject to both the deterioration process and shock process. The competing and dependent failures due to deterioration and shock are considered. A mathematical model for the deteriorating system cost is derived under a pre-selected maintenance policy, and the long-run cost rate can be minimized by a joint optimization of the maintenance structure thresholds. Through a numerical example, the proposed model is compared with the maintenance model using periodically inspection policy, and the validity and superiority of the model are proved.
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