Hybrid preventive maintenance model based on reliability constraint

被引:0
作者
Department of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China [1 ]
不详 [2 ]
机构
[1] Department of Control Science and Engineering, Zhejiang University
[2] Zhejiang Electric Power Test and Research Institute
来源
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2008年 / 42卷 / 08期
关键词
Hybrid model; Preventive maintenance; Random variable; Reliability;
D O I
10.3785/j.issn.1008-973X.2008.08.018
中图分类号
学科分类号
摘要
A hybrid preventive maintenance model for equipment maintenance features was established based on two maintenance strategies of equipment failure rate decay and age decrease. Reliability constraint condition was introduced to the mathematical model for optimization of average maintenance cost in unit time. The optimal preventive maintenance strategy could be achieved to balance maintenance costs and reliability relations. Random variable was used to assess the effect of the hybrid model. The hybrid preventive maintenance model for a paper machine equipment which met the failure time Weibull distribution was solved to obtain the optimal preventive maintenance strategy. In the strategy, the maintenance cost decreased 10.11% to the average cost and 21.05% to the maximum cost. Simulation shows that the hybrid model based on reliability constraint can realize the minimum average cost per unit time in meeting the minimum reliability standard. This approach can be used for scheduling the maintenance plan and provide the decision support for job shop scheduling.
引用
收藏
页码:1376 / 1379
页数:3
相关论文
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