摘要
考虑套圈、钢球和保持架的结构弹性变形与动态接触关系,建立了角接触球轴承柔性多体接触动力学有限元仿真模型。在不同引导游隙、转速和径向力下,运用ANSYS/LS-DYNA仿真分析了角接触球轴承的动力学性能,以及保持架的动态冲击应力和稳定性。计算讨论了角接触球轴承的动态接触应力,获得了保持架的角速度、动态冲击应力、质心运动轨迹等仿真结果,它们与理论计算结果具有较好的一致性。结果表明,球轴承运动速度的变化对保持架的动态冲击应力和稳定性的影响较大。
Abstract. Considering the structural delormatmn ot tuner, outer and cage and clynamtc contact re lationship among the ball, raceways and cage, a flexible multi body contact dynamics model of angu lar contact ball bearings was established by FEM（finite element method）. The dynamic contact simu lation analysis was achieved by ANSYS/I.SDYNA and the calculated dynamics characteristics were discussed with different radial loads, rotating speeds, guide clearances. The calculated results of an gular contact ball bearings were verified by theoretical values such as dynamic contact stress, angular speed of cage, dynamic impact stress and trace of cage＇s center. The dynamic impact stress and sta bility of cage are affected especially by the variety of angular speed.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2014年第1期117-122,共6页
China Mechanical Engineering
基金
国家自然科学基金资助项目(11002062)
昆明理工大学引进人才启动基金资助项目(KKSA201101018)
关键词
角接触球轴承
保持架
有限元法
动力学分析
angular contact ball bearing
cage
finite element method
dynamics analysis
