车桥耦合中轮径差对车轮磨耗的影响

蔡送宝; 李林安; 孙士刚

doi:10.13433/j.cnki.1003-8728.2015.1222

车桥耦合中轮径差对车轮磨耗的影响

doi: 10.13433/j.cnki.1003-8728.2015.1222

1.
天津大学机械学院, 天津 300072;
2.
铁道第三勘察设计院集团有限公司, 天津 300142

详细信息

作者简介:
蔡送宝(1988-),硕士研究生,研究方向为高速列车车桥耦合车轮磨耗,roubaocaicaizi@163.com

通讯作者:
李林安(联系人),教授,博士研究生,lali@tju.edu.cn

计量
- 文章访问数: 158
- HTML全文浏览量: 37
- PDF下载量: 8
- 被引次数: 0
出版历程
- 收稿日期: 2013-12-31
- 刊出日期: 2015-12-05

Influence of Wheel Diameter Difference on Wheel Wear in Process of Vehicle-bridge Coupling

1.
School of Mechanical Engineering, Tianjin University, Tianjin 300072, China;
2.
The Third Railway Survey and Design Institute Group Corporation, Tianjin 300142, China

摘要

摘要: 推导了同时考虑接触斑内刚性滑动量和弹性变形量影响的轮轨相对滑动速度计算公式;建立了车轮磨耗理论计算模型并发展了相应的数值分析程序,该计算模型中包含了车桥耦合动力学模型、轮轨滚动接触模型和材料摩擦磨损模型。应用该模型仿真分析了4种典型轮径差对车桥耦合中车轮磨耗的影响。分析结果表明:轮径差不仅会造成车轮的严重偏磨,而且会明显改变车轮踏面的磨耗区域。
- 车轮磨耗 /
- 轮径差 /
- 车桥耦合 /
- 数值分析
Abstract: In this paper, the calculation algorithm of the wheel-rail relative sliding velocity taking both the rigid and elastic deformations in the contact patch into consideration was derived. A theoretical calculation models to predict the railway wheel wear and the numerical analysis program were developed, including the coupling dynamics model of vehicle and bridge, a wheel material wear model and the rolling contact model of wheel and rail system. The influence of four typical wheel diameter differences on wheel wear in the process of vehicle-bridge coupling is analyzed with the models. The results indicate that wheel diameter difference not only results in the wheel eccentric wear, but also causes the changes of the wear region of wheel tread.
- algorithms /
- calculations /
- computer simulation /
- degrees of freedom (mechanics)

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参考文献(17)

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