考虑耗散接触特征的滚动轴承非线性动态行为研究  

Reserch on Nonlinear Dynamic Behavior of Rolling Bearing Considering Dissipative Contact Characteristics

作　　者：陈辰 王领 陈佳圆 马天琦 朱浩然 陈宇 CHEN Chen;WANG Ling;CHEN Jiayuan;MA Tianqi;ZHU Haoran;CHEN Yu(School of Mechanical Engineering,Jiangsu University of Technology,Changzhou 213001,China)

机构地区：[1]江苏理工学院机械工程学院,江苏常州213001

出　　处：《机械制造与自动化》2025年第2期152-156,169,共6页Machine Building & Automation

基　　金：江苏大学生创新创业训练计划项目(202211463003Z)。

摘　　要：为探究滚动轴承受非线性接触特征变化影响而引起的自身动态特性改变的现象,对滚动轴承借助多体动力学方法建立动态特征分析模型。采用相对传动方法(Hertz接触模型)描述滚动轴承接触碰撞现象,引入耗散接触力模型描述滑移接触条件下滚动体与内、外滚道的非理想接触特征。基于Runge-Kutta法和Newmark-β法对其动力学方程进行求解,获得滚动轴承非线性动态特征并结合动态性能实验验证模型的有效性。结果表明:高速轻载工况下,滚动体与保持架易呈现非周期性变化特征,内圈运动轨迹出现分岔现象,合适的工况条件及结构参数可有效抑制打滑特征的产生并明显改善滚动轴承的运动稳定性。In order to study the effects of changing nonlinear contact characteristics on its own dynamic behaviors,the dynamic analysis model of rolling bearing is established by the multibody dynamic theory.The traditional method(Hertz contact model)is applied to describe the rolling bearing contact,and the dissipative contact force model is introduced for depicting the non-ideal contact characteristics of the rolling ball on its inner and outer raceways under sliding contact conditions.Based on the methods of Runge-Kutta and Newmark-β,the dynamic equations of rolling bearing are solved,the nonlinear dynamic response is obtained,and the effectiveness of the proposed model is verified by dynamic experimental tests.The results show that the rolling ball and cage under the high-speed and underloading condition tend to assume non-periodicity features,and bifurcation occurs on the inner motion trajectory.The suitable operation condition and structural parametes can inhibit sliding and improve the motion stability of rolling bearing significantly.

关 键 词：耗散接触特征 滚动轴承 动态特性 非线性碰撞 

分 类 号：TH133[机械工程—机械制造及自动化]