基于混沌理论的插条机轴承性能分析

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中图分类号：S776.03 文献标识码：A 文章编号：2095-2953（2025）08-0020-06

Performance Analysis of Cutting Machine Bearings Based on Chaos Theory

WANG Yi-peng

（Schoolof Mechatronics Engineering，Henan Universityof Science &Technology，Luoyang Henan 471Oo3，China）

Abstract：Bearing performance evolution analysis is of great significance for the operation of the whole machine.In order torealize bearing performance evolution analysis based on the full-life-cycle vibration time series，Weibull distribution basedon statistics principle is used to analyze the vibration time sub-series ofthe normal operation，mild fault andserious faultof the bearing.Secondly，the Hurst index can becalculated to characterize thechaotic characteristics ofthe vibration time subsequences ofeach running state.The resultsshow that there is a high goodnessof fit between the Weibullprobabilitydensity function and the actual vibration time series whenthe bearing is running normaly.Bearing performance evolution is consistent with Weibull parameter changes，and Weibull parameter changes areconsistent with Hurst index changes，that is，with the increase inrunning time，the nonlinearityof vibration time series becomes higher and thus，bearing performance can be analyzed through Hurst index changes.

Key words：vibration time series;weibull distribution;chaos theory;nonlinearity

随着工业水平的不断发展，消费者对装备的需求逐渐转变，对设备性能的需求逐渐超过对设备寿命[1]的要求。（剩余6853字）