Design of a new type of rubber bushing with small radial-to-axial stiffness ratio

NI Yanqiang; SHAO Haicheng; YANG Jingyi; FAN Lingju; LIU Zhiguo

doi:10.13890/j.issn.1000-128X.2024.01.009

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Design of a new type of rubber bushing with small radial-to-axial stiffness ratio

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

- Design of a new type of rubber bushing with small radial-to-axial stiffness ratio
- Electric Drive for Locomotives Issue 1, Pages: 71-76(2024)
- 作者机构：
  
  中车青岛四方车辆研究所有限公司，山东青岛 266031
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2024.01.009
  CLC： U266.2;U260.331⁺.5
- Published：10 January 2024，
  
  Received：07 December 2021，
  
  Revised：24 November 2022，
- 稿件说明：
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倪延强, 邵海城, 杨静怡, 等. 新型小径向/轴向刚度比的橡胶节点设计[J]. 机车电传动, 2024(1): 71-76.

NI Yanqiang, SHAO Haicheng, YANG Jingyi, et al. Design of a new type of rubber bushing with small radial-to-axial stiffness ratio[J]. Electric drive for locomotives, 2024(1): 71-76.
倪延强, 邵海城, 杨静怡, 等. 新型小径向/轴向刚度比的橡胶节点设计[J]. 机车电传动, 2024(1): 71-76. DOI：10.13890/j.issn.1000-128X.2024.01.009.

NI Yanqiang, SHAO Haicheng, YANG Jingyi, et al. Design of a new type of rubber bushing with small radial-to-axial stiffness ratio[J]. Electric drive for locomotives, 2024(1): 71-76. DOI：10.13890/j.issn.1000-128X.2024.01.009.

摘要

为满足高速动车组电机悬挂要求，文章设计了一种新型小径向/轴向刚度比（径向刚度与轴向刚度比值）的橡胶节点，并通过有限元仿真分析、静刚度试验、疲劳试验及装车试验进行了验证。结果表明，这种结构的橡胶节点符合技术要求，且其预压缩简单有效，刚度范围可调，抗疲劳性能良好，具有良好的高温耐受性，满足电机运行环境的要求。

Abstract

A new type of motor rubber bushing with small radial-to-axial stiffness ratio for high-speed EMUs was designed to meet the installation requirements of motor suspension for a certain high-speed train unit. Through finite element simulation analysis

static stiffness test

fatigue test and running verification

the results show that rubber bushing with this structure can meet the technical requirements

and the pre-compression of rubber is simple and effective

the stiffness range is adjustable

the fatigue performance is good

and it can meet the high temperature tolerance of the motor operating environment.

关键词

橡胶节点径向/轴向刚度比有限元疲劳高速动车组

Keywords

rubber bushingradial-to-axial stiffness ratiofinite elementfatiguehigh speed train

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