滚动轴承局部损伤故障动力学建模及仿真  

Fault Dynamic Modeling and Simulating of Rolling Bearing with Localized Defect

作　　者：关贞珍[1] 郑海起[1] 王彦刚[1] 杨杰[1] 

机构地区：[1]石家庄军械工程学院车辆与电气工程系,石家庄050003

出　　处：《振动．测试与诊断》2012年第6期950-955,1036,共6页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目(编号:550775219)

摘　　要：针对实际齿轮箱轴承系统,建立了转子-故障滚动轴承-轴承座系统非线性振动模型,在模型中充分考虑了轴承间隙、滚珠与滚道的非线性接触力及变柔度VC振动。在此基础上,进一步建立了轴承外圈、内圈、滚动体局部损伤故障非线性动力学模型,并运用数值积分的方法进行了动力学仿真与分析。仿真分析结果验证了滚动轴承存在局部故障时的动力学特性,表明轴承局部损伤故障动力学模型的正确性。Aiming at practical bearing system in a gearbox,a new rotor-ball bearing-bearing block system dynamic model is established.In the model,the clearance of bearing,the nonlinear Hertz contract force between balls and races and the varying compliance vibration are considered.On this basis,the fault models of outer race,inner race and ball rolling bearing are established,the numerical integration is applied to simulate and analyze these models and results verify the dynamic character of ball bearing with localized defect and show the model is correct and effective.

关 键 词：滚动轴承 故障模型 动力学特性 仿真 

分 类 号：TH165[机械工程—机械制造及自动化] TH133.33