高速圆柱滚子轴承柔性保持架的动力学分析  

Dynamic Analysis on Flexible Cage in High Speed Cylindrical Roller Bearing

作　　者：李晌[1] 蒋新力 姜艳红 梁波[3] 邓四二[1] 

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]洛阳LYC轴承有限公司,河南洛阳471039 [3]洛阳轴研科技股份有限公司,河南洛阳471039

出　　处：《轴承》2010年第7期1-5,共5页Bearing

基　　金：国家"十一五"科技攻关项目(JPPT-115-189);河南省教育厅自然科学基金项目(2007460007);河南科技大学科技研究基金(2006QN013)

摘　　要：针对高速圆柱滚子轴承的实际工作情况和失效机理,考虑了构件柔性变形的影响,在ADAMS中创建了保持架为柔性体的刚柔耦合轴承模型,采用子结构模态综合法建立了轴承动力学运动微分方程并探讨了主要相互作用力的求解方法,开发了相应的分析软件,研究了不同工况和结构参数对轴承保持架动态性能的影响规律。结果表明,振动应力引起的疲劳失效多发生在保持架过梁处,低于538.78 Hz的频率范围内保持架不会发生共振现象;高速轻载下保持架打滑更为严重,保持架的柔性处理更符合实际情况,提高了仿真精度。According to the working conditions and failure mechanism of cylindrical roller bearing at high speed,the affection of the deformation of flexible body is considered,and the coupled model is built in ADAMS software in which the cage was made to be flexible body.The differential equations of motion of bearing dynamics are established and the methods of solving main interaction forces are studied.The related analysis software is developed.The affecting rules of different working condition and structure parameters on dynamic characteristics of cage are analyzed.The results show that fatigue failure caused by vibration stress occurs on the cage bar,and there is no sympathetic vibration for cage when the frequency is less than 538.78 Hz;high-speed and light-load will result in slip of cage more easily.The way dealing with cage accords with the facts quite well,improving the precision of simulation.

关 键 词：圆柱滚子轴承 保持架 刚柔耦合 ADAMS 仿真 

分 类 号：TH133.332[机械工程—机械制造及自动化] TP391.9[自动化与计算机技术—计算机应用技术]