Contact analysis and parameter optimization of wheel axle sliding bearings in variable gauge bogies

PENG Yueyang; HUANG Zhihui; TANG Jiacheng; SONG Yangfa; DAI Xiaochao

doi:10.13890/j.issn.1000-128X.2023.06.006

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Contact analysis and parameter optimization of wheel axle sliding bearings in variable gauge bogies

Railway Rolling Stock | 更新时间：2024-08-02

- Contact analysis and parameter optimization of wheel axle sliding bearings in variable gauge bogies
- Electric Drive for Locomotives Issue 6, Pages: 49-55(2023)
- 作者机构：
  
  1.西南交通大学轨道交通运载系统全国重点实验室，四川成都 610031
  2.中车长春轨道客车股份有限公司国家轨道客车系统集成工程技术研究中心，吉林长春;130062
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2023.06.006
  CLC： U292.91⁺4
- Published：10 November 2023，
  
  Received：01 August 2023，
  
  Revised：23 August 2023，
- 稿件说明：
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彭越阳, 黄志辉, 唐嘉诚, 等. 变轨距转向架轮轴滑动轴承的接触分析及参数优化[J]. 机车电传动, 2023(6): 49-55.

PENG Yueyang, HUANG Zhihui, TANG Jiacheng, et al. Contact analysis and parameter optimization of wheel axle sliding bearings in variable gauge bogies[J]. Electric drive for locomotives,2023(6): 49-55.
彭越阳, 黄志辉, 唐嘉诚, 等. 变轨距转向架轮轴滑动轴承的接触分析及参数优化[J]. 机车电传动, 2023(6): 49-55. DOI： 10.13890/j.issn.1000-128X.2023.06.006.

PENG Yueyang, HUANG Zhihui, TANG Jiacheng, et al. Contact analysis and parameter optimization of wheel axle sliding bearings in variable gauge bogies[J]. Electric drive for locomotives,2023(6): 49-55. DOI： 10.13890/j.issn.1000-128X.2023.06.006.

摘要

文章对高速列车1 435/1 520 mm变轨距转向架轮轴滑动轴承的接触特性和参数优化展开研究，按照GB/T 5371—2004确定了“车轮‒滑动轴承”“滑移衬套-车轴”配合的过盈量大小。基于Hypermesh与ANSYS联合仿真，确定了滑动轴承与滑移衬套的材料、优化后的滑动轴承结构参数。研究结果表明，滑动轴承材料采用45钢，滑移衬套材料采用“聚酰胺-酰亚胺”（PAI）能有效减小两者之间的接触压力；随着滑动轴承斜面倾角的增大，“车轮‒滑动轴承”平均接触压力呈近似线性增加，“滑动轴承‒滑移衬套”最大接触压力先减小后增大；对“车轮‒滑动轴承”接触部分

点和

点进行倒圆处理，能有效缓解因结构几何形状突变导致的应力集中现象；车轴受径向载荷弯曲变形时，会对滑动轴承产生绕

轴的偏转力矩，对滑动轴承

点位置进行倒圆处理能有效改善“滑动轴承‒滑移衬套”接触状态。

Abstract

A study was conducted on the contact characteristics and parameter optimization of the wheel axle sliding bearings in 1 435/1 520 mm variable gauge bogies for high-speed trains. The magnitude of interference for the fitting of the 'wheel - sliding bearing' and 'sliding bushing - axle' was determined in accordance with GB/T 5371—2004. Based on the joint simulation with HyperMesh and ANSYS

the materials for sliding bearings and sliding bushings

as well as the optimized structural parameters of sliding bearings

were determined. The research results indicate that using 45# steel as the sliding bearing material and polyamide-imide (PAI) as the sliding bushing material can effectively reduce the contact pressure between the two; the average contact pressure between the wheel and the sliding bearing increases approximately linearly with the inclination angle of the sliding bearing slope

while the maximum contact pressure between the sliding bearing and the sliding bushing initially decreases and then increases; chamfering at points

and

of the contact part between the wheel and the sliding bearing can effectively alleviate stress concentration resulting from abrupt changes in structural geometry; when the axle is subjected to bending deformation due to radial load

a deflection torque around the

-axis would be generated on the sliding bearing; chamfering at point

of the sliding bearing can effectively improve the contact state between the sliding bearing and the sliding bushing.

关键词

高速列车滑动轴承滑移衬套过盈配合倒圆半径接触压力

Keywords

high-speed trainsliding bearingsliding bushinginterference fitchamfering radiuscontact pressure

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