凸轮轴高速磨削烧伤机理分析与在线监测系统研究

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关键词：凸轮轴；高速磨削；磨削烧伤；在线监测

中图分类号：TH165

DOI：10.3969/j.issn.1004-132X.2025.08.014 开放科学（资源服务）标识码（OSID）：

Abstract：The high-speed grinding of the non-circular contours of the camshafts was prone to grinding burns，resulting in a decrease in surface quality and service life and even scrapping. Therefore，the mechanism analysis and online monitoring system of camshaft high-speed grinding burns were studied.The influences of procesing parameters on grinding burns were discussed. A grinding burn's quantitative evaluation method was proposed by surface morphology and hardness. Frequency and time-frequency domain analysis methods carried out the signal processing and feature extraction. The relationship between the sensing signals and grinding burns was analyzed. The AE（acoustic emission） signal features with a high correlation with grinding burn were extracted based on ReliefF. The monitoring model of grinding burn was established based on GA-SVM（genetic algorithm-support vector machine）. And it was verified by experiments. The online monitoring system of camshaft high-speed grinding burns was developed and applied .

Key words： camshaft；high speed grinding;grinding burn;online monitoring

0 引言

凸轮轴是发动机的重要零部件，其服役性能受到轮廓曲面加工质量的影响[1]。（剩余16730字）