
第37卷第1期 2016年3月
哈尔
滨轴承
JOURNAL OF HARBIN BEARING
高速列车轴箱轴承动力学分析*
盖利森,张卫华
(西南交通大学牵引动力国家重点实验室,四川成都610031)
Vol.37 No.1 Mar. 2016
要:考虑实际运行工况,通过高速列车整车动力学仿真得到列车运行时轴箱轴承所受外载荷,建立某型
据
高速列车轴箱所用双列圆维滚子轴承三维动力学模型,对轴承进行动力学仿真,分析轴承滚子与其他元件的接触力、接触应力变化规律,分析保持架的运动稳定性。结果表明:子与内圈滚造接触状态最恶劣,两列滚子动力学性能具有显著差异,两列保持架质心运动趋于稳定,不会产生高颊涡动现象,为高速列车轴箱轴承计算分析和应用提供依据。
关键词:高速列车;轴箱轴承;动力学仿真
中图分类号:TH133.33*4
文献标识码:A
文章编号:16724852(2016)01000306
Dynamic analysis of axle box bearing of high-speed train
Ge Lisen, Zhang Weihua
(State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China)
Abstract: A dynamic simulation of the high-speed train is carried out to acquire the extermal load acting on the axle box bearing of the train considering the train's actual operating conditions. A three-dimensional dynamic model of a two-row tapered roller bearing mounted in the axle box of one type of high-speed train is modeled. Dynamic simulation of the bearing is executed to research on the contact forces and contact pressures between the rollers and the other components of the bearing and the motion stability of the cages. It is concluded that the contact status between the rollers and the inner ring raceway is the worst. The dynamic properties of the rollers from the two rows are significantly different. The cages' mass centers tend to stabilize and won't whirl at a high frequency. A basis is provided for the calculation, analysis and application of the axle box bearing of the high-speed train
Key words: high-speed train, axle box bearing, dynamic simulation
1前言
高速列车轴箱轴承装配于高速列车轴箱中,内圈与列车车轴过盈配合,外圈与轴箱箱体间隙配合,是保证列车安全、平稳、稳定运行的关键部件,时速250km以上高速列车的轴箱轴承多选用双列圆锥滚子轴承。轴箱箱体与轴箱轴承合称
收稿日期:2016-03-10.
作者简介:盖利森(1992-),男,在读硕士
*项目基金:国家自然科学基金高铁联合基金(编号:
U1234208);国家自然科学基金青年科学基金(编号:51105342)
为轴箱装置,轴箱装置将车辆转向架构架和轮对联系在一起,高速列车运行时,轴箱轴承承受并传递着列车转向架与轮对之间各个方向作用力,受力工况复杂。为了探究轴箱轴承在恶劣的运行工况下的动力学性能,有必要对其进行动力学分析。
近年来,高速滚子轴承动力学仿真研究取得了较突出的进展(1-),所建立的轴承动力学模型能够较精确地表述轴承各元件的动力学性能[.2]、轴承-转子系统动力学性能13.4、弹性轴承元件5.6 及表面带有缺陷的轴承元件(7.8对轴承动力学性