基于振动时间序列和威布尔估计的轴承性能动态分析  

Dynamic Prediction of Bearing Performance Based on Vibration Time Series and Weibull Estimation

作　　者：卜德天 陈龙[1] 刘红彬[1] 陈荣华 张弘毅[3] BU Detian;CHEN Long;LIU Hongbin;CHEN Ronghua;ZHANG Hongyi(School of Mechatronics Engineering,Henan University of Science&Technology,Luoyang 471003,China;Zhejiang Sling Automobile Bearing Co.,Ltd.,Xinchang 312500,China;Luoyang Bearing Research Institute Co.,Ltd.,Luoyang 471039,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]浙江斯菱汽车轴承股份有限公司,浙江新昌312500 [3]洛阳轴承研究所有限公司,河南洛阳471039

出　　处：《机械制造与自动化》2025年第1期35-38,共4页Machine Building & Automation

基　　金：河南科技大学博士科研启动基金项目(13480075)。

摘　　要：威布尔估计常应用于分析轴承额定寿命和寿命离散程度;轴承不同运行状态的振动时间序列为基于统计学原理的威布尔分布提供数据基础。以威布尔估计为理论基础,分析试验中稳定区间内的振动时间子序列,通过威布尔参数的变化实现轴承性能的动态分析。结果表明:振动子序列威布尔参数先于振动加速发生变化,证明传统的威布尔估计方法能应用于单个轴承性能演变分析。Weibull estimation is often used to analyze the rated life and life dispersion degree of batch bearings,and Vibration time series of bearing in different operating states provide data foundation for statistics-theory-based Weibul distribution.Based on Weibull estimation,this paper analyzes the vibration time subseries in the stability interval of the test,and realizes the dynamic prediction of bearing faults through the change of Weibull parameter.The results show that the Weibull parameters of vibration subsequence change before vibration acceleration,which proves that the traditional Weibull estimation method can be applied to the analysis of single bearing state evolution.

关 键 词：轴承 威布尔估计 振动 形状参数 尺度参数 性能分析 

分 类 号：TH133.3[机械工程—机械制造及自动化]