| 轨道车辆用牵引橡胶球铰的结构优化 |
| Structural Optimization of Traction Rubber Bushing for Rail Vehicle |
| 投稿时间：2024-05-23 修订日期：2024-05-23 |
| DOI：10.12136/j.issn.1000-890X.2024.10.0759 |
| 中文关键词: 轨道车辆 牵引橡胶球铰 流线形型面 结构优化 有限元分析 |
| 英文关键词: rail vehicle traction rubber bushing streamline profile structural optimization finite element analysis |
| 基金项目:湖南省普通高校青年骨干教师培养项目（2023年）；湖南省教育厅科学研究项目（项目编号：22C0753） |
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| 中文摘要: |
| 针对轨道车辆用牵引橡胶球铰（简称牵引橡胶球铰）的失效情况，分析了其载荷工况特点和初始结构的不足，并对牵引橡胶球铰进行结构优化。结果表明：Ogden 4阶超弹本构模型对牵引橡胶球铰的橡胶材料大变形仿真分析精度较高；通过设置合理的径向预压缩量、合理增大橡胶层厚度、采用流线形橡胶型面等可以优化牵引橡胶球铰的结构，有效减小牵引橡胶球铰的橡胶部分应力和应变，从而延长牵引橡胶球铰的疲劳寿命。本研究可为大变形牵引橡胶球铰的设计提供参考。 |
| 英文摘要: |
| In response to the failure of the traction rubber bushing used for rail vehicle（referred to as traction rubber bushing），the characteristics of the load condition and the shortcomings of the initial structure were analyzed，and the structural optimization of the traction rubber bushing was carried out.The results indicated that the Ogden 4th order hyperelastic constitutive model had high analysis accuracy in simulating large deformations of the rubber materials in the traction rubber bushing.The structure of the traction rubber bushing could be optimized by setting a reasonable radial pre-compression shrinkage，reasonably increasing rubber layer thickness，and using streamlined rubber profile，and the stress and strain of the rubber part of the traction rubber bushing could be effectively reduced，thereby the fatigue life of the traction rubber bushing was extended.This study could provide reference for the design of large deformation rubber bushing. |
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