摘要
为描述考虑内、外圈复合故障角接触球轴承的振动特性,建立了角接触球轴承内、外圈复合故障时变位移激励模型;基于非线性Hertz接触理论,建立了角接触球轴承时变刚度模型;提出了考虑内、外圈复合故障的角接触球轴承动力学计算方法,研究了不同参数和工况条件下复合故障轴承的振动响应规律。研究结果表明:随着故障尺寸和轴承载荷的增大,复合故障轴承的振动特征频率不变,但其幅值增大;随着轴承转速的增大,复合故障轴承的振动特征频率及其幅值均增大;故障位置的变化将对复合故障轴承的振动特征产生很大影响,故障处越接近承载区,轴承的负载越大,振动特征越明显。
To describe the vibration characteristics of angular contact ball bearings with composite faults on inner and outer rings,a time-varying displacement excitation model for angular contact ball bearings with faults was established.Based on the nonlinear Hertz contact theory,a time-varying stiffness model for angular contact ball bearings was established.A dynamic calculation method for angular contact ball bearings considering composite faults on inner and outer rings was proposed,and the vibration responses of composite fault bearings under different parameters and operating conditions were investigated.The results indicate that as the fault sizes and the bearing load increase,the vibration characteristic frequency of the composite fault bearing remains unchanged,but its amplitude increases.As the rotational speed of the bearing increases,both the vibration characteristic frequency and amplitude of the bearing increase.The changes in the fault location will have a significant impact on the vibration characteristics of the bearing.The closer the fault location is to the load-bearing area or the greater the load on the bearing is,the more obvious the vibration characteristics are.
作者
雷春丽
薛伟
樊高峰
王毅
王锋
李建华
LEI Chunli;XUE Wei;FAN Gaofeng;WANG Yi;WANG Feng;LI Jianhua(School of Mechanical and Electrical Engineering,Lanzhou University of Technology,Lanzhou 730050,China;Yunnan Wenshan Aluminum Co.,Ltd.,Wenshan 663000,China)
出处
《振动与冲击》
EI
CSCD
北大核心
2024年第14期275-283,共9页
Journal of Vibration and Shock
基金
国家自然科学基金(51465035)
甘肃省自然科学基金(20JR5RA466)
兰州理工大学红柳一流学科建设项目。
关键词
角接触球轴承
复合故障
时变位移激励
振动特性
angular contact ball bearing
composite fault
time-varying displacement excitation
vibration characteristics
