凸轮轴磨损再制造疲劳寿命分析

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中图分类号：TK428 文献标识码：A DOI： 10.7535/hbgykj. 2026yx01009

Abstract：In order toevaluate theposibilityof remanufacturing and repairing of engine camshaft under diferent wear conditions，takingthecamshaftofJichai1V190diesel engineas theresearchobject，thecamshaft models ofthree statesof non-wear，local deep wear of 4mm and overall shallow wear of 3% were established by finite element method. Based on ANSYS Workbench software，the transient stressanalysis was carredoutto explore theinfluenceof wearonthe surface stress fieldofcamshaft.And combined with nCode DesignLifesoftwareforthefatiguelife prediction.Theresults show that the fatigue life of the camshafts with two different degrees of wear is not less than 1.8×104 hours，which meets the minimum servicelifestandardrequiredforremanufacturing.Atthesametime，itisrevealedthat wearwillweaken thefatigue performance of the camshaft，and the local deep wear of 4mm has a more prominent effect on the reduction of life than the overall shallow wear of 3% . The research results confirm the potential of camshaft remanufacturing under specific wear conditions，and provide valuable references for the optimal design of related remanufacturing processes.

Keywords： internal combustion engineering;camshaft；wear; remanufacturing; fatigue life

内燃机再制造工程是循环经济的重要实践，这一过程不仅延长了内燃机的使用寿命，而且大大减少了资源消耗，减轻了制造新型内燃机对环境造成的负担，达到了经济效益与环境效益共贏[1]。（剩余11495字）