Analysis of the Vibration Characteristic of Rolling Bearing-Rotor System of Machine Tool Spindle

Si Zhanfeng; Ma Wei; Li Jishun; Xue Yujun; Yang Fang

doi:10.16578/j.issn.1004.2539.2015.09.030

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Analysis of the Vibration Characteristic of Rolling Bearing-Rotor System of Machine Tool Spindle

更新时间：2022-10-20

- Analysis of the Vibration Characteristic of Rolling Bearing-Rotor System of Machine Tool Spindle
- Vol. 39, Issue 9, Pages: 121-125(2015)
- 作者机构：
  
  1. 河南科技大学机电工程学院
  2. 河南科技大学河南省机械设计与传动系统重点实验室
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2015.09.030
  CLC：
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[1]司占峰,马伟,李济顺,薛玉君,杨芳.机床主轴滚动轴承-转子系统振动特性分析[J].机械传动,2015,39(09):121-125.

Si Zhanfeng, Ma Wei, Li Jishun, et al. Analysis of the Vibration Characteristic of Rolling Bearing-Rotor System of Machine Tool Spindle. [J]. 39(9):121-125(2015)
[1]司占峰,马伟,李济顺,薛玉君,杨芳.机床主轴滚动轴承-转子系统振动特性分析[J].机械传动,2015,39(09):121-125. DOI： 10.16578/j.issn.1004.2539.2015.09.030.

Si Zhanfeng, Ma Wei, Li Jishun, et al. Analysis of the Vibration Characteristic of Rolling Bearing-Rotor System of Machine Tool Spindle. [J]. 39(9):121-125(2015) DOI： 10.16578/j.issn.1004.2539.2015.09.030.

摘要

推导了滚动轴承在工作状态下产生的非线性轴承力,建立了系统的非线性动力学方程,通过Matlab模拟得出系统的分岔图、庞加莱图、轴心轨迹图等,分析了不同参数下的振动特性,再利用数值方法对方程求解,得出系统振动的位移值。结果表明:非线性轴承力会引起系统振动的变化,系统振动中会出现分岔现象,振动存在多种周期和非周期形式,并且阻尼、转速、径向力是影响振动的重要参数,选择合理的工况参数,可增强系统的稳定性,提高系统的动态性能。

Abstract

The non- linear bearing force in the working state of the rolling bearing is deduced and non-linear dynamics equations of a system are established. The system axis path chart,the bifurcation diagram and the Poincare figure are drawn in Matlab and used to analyze the characteristics of the system vibration with the different parameters. The numerical method is used to solve the equations and the displacement values of system vibration are obtained. The results show that the change of the non- linear bearing force will cause the vibration of the system and bifurcation phenomena will appear in the system. The speed,damping and radial force are important parameters that influence the vibration. By choosing reasonable working parameters,the vibration of system can be reduced and the stability of the system can be improved.

关键词

机床滚动轴承振动分岔稳定性

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