Life Evaluation of High-speed EMU Variable Gauge Bogie Axle Box Bearing under Partial Load

Zhiwei ZHENG; Zhihui HUANG

doi:10.13890/j.issn.1000-128x.2020.05.102

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Life Evaluation of High-speed EMU Variable Gauge Bogie Axle Box Bearing under Partial Load

Research & Development | 更新时间：2021-12-10

- Life Evaluation of High-speed EMU Variable Gauge Bogie Axle Box Bearing under Partial Load
- Electric Drive for Locomotives Issue 5, Pages: 106-110,113(2020)
- 作者机构：
  
  1.西南交通大学　牵引动力国家重点实验室，四川　成都　610031
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128x.2020.05.102
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Zhiwei ZHENG, Zhihui HUANG. Life Evaluation of High-speed EMU Variable Gauge Bogie Axle Box Bearing under Partial Load. [J]. Electric Drive for Locomotives (5):106-110,113(2020)
DOI：

Zhiwei ZHENG, Zhihui HUANG. Life Evaluation of High-speed EMU Variable Gauge Bogie Axle Box Bearing under Partial Load. [J]. Electric Drive for Locomotives (5):106-110,113(2020) DOI： 10.13890/j.issn.1000-128x.2020.05.102.

摘要

针对一种高速动车组变轨距转向架轴箱轴承的寿命进行评估。受轮对变轨距的影响，轴箱轴承要兼顾2种轨距而承受偏载，从而产生偏载效应以及边缘效应，使得线接触负重偏载端先于其他部分过早失效，所以有必要对变轨距转向架轴箱轴承展开寿命评估。文章对其在偏载工况下的疲劳寿命进行了计算，并对双列圆柱滚子轴承的滚子进行修形，通过数值分析得到了不同偏载量与滚子轴承疲劳寿命之间的拟合曲线。计算表明，偏载影响轴承的疲劳寿命，但仍能满足设计要求。

Abstract

The life of the axle box bearing of a high-speed EMU variable gauge bogie was evaluated. The axle box bearing should take two kinds of gauge and bear partial load due to the influence of the wheel track distance, thus producing the partial load effect and the edge effect, which made the line contact load bearing end failure earlier than the other parts. Therefore, it was necessary to evaluate the expansion life of the axle box bearing of the variable gauge bogie. The fatigue life of the double row cylindrical roller bearing was calculated and the roller of the double row cylindrical roller bearing was repaired. The fitting curve between the different load and the fatigue life of the roller bearing was obtained by numerical analysis. The calculation showed that the partial load greatly affected the fatigue life of the bearing, but it could still meet the design requirements.

关键词

高速动车组变轨距转向架轴箱轴承偏载疲劳寿命有限元分析

Keywords

high-speed EMUvariable gauge bogieaxle box bearingpartial loadfatigue lifeFEA

references

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马文博. 基于接触分析的凸度滚子轴承力学特性研究与结构优化[D]. 南京: 南京航空航天大学, 2010.

张瑞田, 赵永翔, 蔡慧. 偏载对铁路货车轴颈轴承概率寿命的影响[J]. 机械工程学报, 2015, 51(24): 177-183.

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魏延刚, 宋宇谟, 刘彦奎. 基于有限元法的推力圆锥滚子轴承动态接触分析[J]. 机电工程, 2019, 36(4): 352-356.

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