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高速轴承动力学有限元分析方法

  

  • 出版日期:2015-08-28 发布日期:2015-08-04

Finite Element Analysis of Dynamics of High Speed Bearing

  • Online:2015-08-28 Published:2015-08-04

PDF (PC)

429

被引次数

6

摘要： 高速轴承是高速列车安全运行的重要部件，轴承运转过程中的动态特性直接影响
轴承的使用寿命，采用最小部件之间创建面面接触的方式，建立高速轨道客车用双列圆锥滚子
轴承的三维虚拟样机模型，利用ANSYS/LS-DYNA 分别研究客车直线匀速行驶和额定速度下以
最小转弯半径行驶两种工况下轴承运转过程的动态接触特性，得到轴承的速度特性、加速特性
以及滚子承载分布状况、接触单元法向作用力时间历程变化曲线以及保持架的振动曲线，研究
结论可以为高速轴承设计过程中模型构建方案的合理确定提供参考。

关键词: 动力学, 虚拟样机, ANSYS/LS-DYNA, 高速轴承

Abstract: High speed bearings are key components for safe operation of high-speed train. There is a
close relationship between rolling contact behavior and the service life of roller bearing. A 3D virtual
model for high speed railway double row tapered roller bearing is established using automatic surface
to surface contact between minimum component, and a finite element analysis of dynamic contact
characteristics of the bearing under straight-line driving and minimum radius steering under
scheduled velocity is conducted respectively using ANSYS/LS-DYNA. Speed, acceleration of
bearing, load distribution of roller, time-history curve of contact element about second principal stress
and vibration of holder is studied. The results can serve as reference in design and construction of
high speed bearing.

Key words: dynamics, virtual model, ANSYS/LS-DYNA, high speed bearing