考虑故障差异的等周期预防性维修策略优化

打开文本图片集

中图分类号：TH17 文献标志码：A 文章编号：1000-582X（2026）03-049-10

doi：10.11835/j.issn.1000-582X.2023.229

Optimization of an equal-cycle preventive maintenance strategy consideringfaultdifferences

LI Xinlong'，JIANG Shuai'，CHEN Fafa'，CHEN Baojia'，ZHANG Genbao²，3

（1.Hubei Key Laboratory of Hydroelectric Machinery Design and Maintenance， China Three Gorges University，Yichang，Hubei 443002，P.R.China; 2.State KeyLaboratoryofMechanical Transmission，Chongqing University， Chongqing 40o044，P.R.China; 3. College of Mechanical Engineering， Chongqing University of Arts and Sciences，Chongqing 402160，P.R.China）

Abstract： The equal-cycle preventive maintenance strategy is widely used due to its simplicity and ease of implementation.However，existing optimization models typically adopt a coarse modeling granularity and rarely account for fault difrences，particularly thevarying effects of preventive maintenanceon diferent failure types. To address these limitations，this study takes the meta-action unit as the basic research object and clasifies unit failures into damage failures and intrinsic fatigue failures，while explicitlyconsidering the difering impactsof preventive maintenance on these two failure types.A hybrid failure-rate model is used to characterize imperfect maintenance eects，and an optimization model for an equal-cycle imperfect preventive maintenance strategy is developed.Numericalanalyses are performedto verifythe effectiveness of the proposed modeland to investigate the influence of different maintenance cost structures on the optimal maintenance cost rate and maintenance strategy.The results indicate that neglecting diferences in preventive maintenance ffcts leads to an underestimation of the maintenance cost rate of the meta-actionunit，and that both maintenance cost types and the proportion offailure modes have a significant impact on the determination of the optimal maintenance strategy.

Keywords：preventive maintenance;meta-actionunit;imperfect maintenance;hybrid failurerate;maintenance effect

预防性维修是降低设备故障发生概率、延长设备使用寿命的手段，应用非常广泛。（剩余10406字）