Research on Small Radius Curve Negotiation and Key Parameters of Tram

Qunsheng WANG; Jing ZENG; Yuanhui CHENG; Hao GAO; Yixuan SHI

doi:10.13890/j.issn.1000-128x.2021.04.003

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Research on Small Radius Curve Negotiation and Key Parameters of Tram

Railway Rolling Stock | 更新时间：2021-12-09

- Research on Small Radius Curve Negotiation and Key Parameters of Tram
- Electric Drive for Locomotives Issue 4, Pages: 14-19(2021)
- 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
  2.武汉地铁运营有限公司，湖北　武汉　430030
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128x.2021.04.003
  CLC：
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Qunsheng WANG, Jing ZENG, Yuanhui CHENG, et al. Research on Small Radius Curve Negotiation and Key Parameters of Tram. [J]. Electric Drive for Locomotives (4):14-19(2021)
DOI：

Qunsheng WANG, Jing ZENG, Yuanhui CHENG, et al. Research on Small Radius Curve Negotiation and Key Parameters of Tram. [J]. Electric Drive for Locomotives (4):14-19(2021) DOI： 10.13890/j.issn.1000-128x.2021.04.003.

摘要

为研究有轨电车小半径曲线的通过性能，首先推导了自由轮对通过曲线的运动方程，从理论的角度分析了轮轨接触摩擦因数、轨距和曲线半径等关键参数对曲线通过性能的影响；然后以五模块低地板有轨电车为例，建立动力学仿真模型，并通过试验验证了模型的准确性；最后从轮轨润滑、轨距加宽和曲线半径的角度分析了有轨电车小半径曲线通过性能的变化规律。研究结果表明，轮轨润滑可以显著提高有轨电车小半径曲线的通过性能，各项安全性指标均出现明显改善；轨距加宽对有轨电车小半径曲线通过性能有一定的影响，并且存在合理的取值范围；曲线半径对曲线通过性能影响明显，曲线半径增大不仅可以降低车辆的各项安全性指标，还可以提高车辆的通过速度。

Abstract

To research the small radius curve negotiation of the tram, the motion equation of a free wheelset passing through curve was firstly derived. In theoretically, the influence of the wheel-rail contact friction coefficient, the gauge distance and the curve radius on the curve passing performance was clarified. Taking the five-module low-floor tram as an example, a dynamic simulation model was established, and the accuracy of the model was verified by a field test. Finally, the variation of small radius curve negotiation of the tram was analyzed from the perspectives of wheel-rail lubrication, gauge widening and curve radius. The research results show that the wheel-rail lubrication has a significant influence on the curve passing performance of the tram and the safety index can be improved obviously. Besides, the gauge widening has a certain influence on the small radius curve negotiation of the tram, and there is a reasonable range of values. Curve radius has obvious implications for curve negotiation. With the increase of the curve radius, the safety coefficient decreases obviously. The increase of the curve radius can not only reduce the safety indicators of the tram, but also improve the passing speed of the curve.

关键词

有轨电车小半径曲线曲线通过性能运行安全性

Keywords

tramsmall radius curvecurve negotiationoperational safety

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