多状态部件的预防性维修策略解算方法

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中图分类号：TB114.3 文献标志码：A DOI： 10.12305/j.issn.1001-506X.2026.03.21

Abstract：Inthe existing research on preventive maintenance strategies for multi-state components，there is alack of researchonthecombined effectsof twofactors ontheentire lifecycle，whicharedifferent monitoring intervalsunder diferentstatesandtherange of preventive maintenance states.Inregard tothis，theunidirectional degradationprocess of component performanceand the transition lawof states throughout the entire lifecycle are analyzed.Taking reliabilityand totalcostas theobjectivefunctions，andconsideringtheimpactoftheinabilitytomonitorthestatus inrealtime，asolution model is proposedto calculatea maintenance strategy，which ison-condition maintenance.Byusing this model to ssist decision-making，optimized preventive maintenance strategies can be obtained，and the corrsponding range of preventive maintenancestatesand diferentmonitoring intervals undereach statecanbedetermined.Forspecific examples，the solution resultsare providedandcompared with the resultsof Monte-Carlo simulation，verifying the corrctnessof the proposed method and solution model.

Keywords：multi-state；on-condition maintenance；reliability；average cost；maintenance support

0 引言

为避免部件完全故障带来的可靠性问题及其造成的损失，通常在合适的条件下对部件进行预防性维修。（剩余15478字）