基于热网络法的列车轴箱轴承热分析  

*Thermal Analysis of Axle Box Bearing Based on Thermal Network Method

作　　者：吴伟[1] 余志壮[1] 

机构地区：[1]同济大学铁道与城市轨道交通研究院,上海201804

出　　处：《机电一体化》2015年第3期76-79,共4页Mechatronics

摘　　要：分析了圆锥滚子轴承的摩擦热来源,在此基础上以脂润滑下的CRH3列车用轴箱圆锥滚子轴承单元130/240-B-TVP为研究对象,通过热网络法建立圆锥滚子轴承的热节点的平衡方程组,采用牛顿-拉夫逊迭代法求解进行热分析,研究了各热节点随着径向载荷和运行速度的变化趋势,并得出了圆锥滚子轴承在工作过程中温度最高点和最低点分别出现在滚子与轴承内圈接触处和主轴上。Analysis with the thermal sources theory for tapered rolling bearing,taking the bearing 130 /240-BTVP lubricated by grease as research object. The balance equations of hot nodes are established by thermal network of the tapered roller bearing,analyze the trends of each heat node with varied radial loads and speeds by Newton-Raphson iterative method,and reach the conclusion that the peak temperature and valley temperature appear on the inner ring and spindle.

关 键 词：热网络法 圆锥滚子轴承 热分析 

分 类 号：U270.33[机械工程—车辆工程]