Computer Engineering and Applications ›› 2014, Vol. 50 ›› Issue (19): 267-270.

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Research and application on wheel-rail match optimization and visualization

XIANG Wenliang1, LUO Xianguang1,2, BI Yebin1   

  1. 1.School of Mechanical Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
    2.CSR Zhuzhou Electric Locomotive Corporation Limited, Zhuzhou, Hunan 412001, China
  • Online:2014-10-01 Published:2014-09-29



  1. 1.湘潭大学 机械工程学院,湖南 湘潭 411105
    2.南车株洲电力机车有限公司,湖南 株洲 412001

Abstract: For the problem of using the experience and experiment method to match the wheel-rail shape in engineering, an optimization and visualization algorithm is presented for the geometrical shape matching in the wheel-rail contact system. The algorithm of the subsection cubic spline interpolation is adopted to fit the wheel-rail profiles curves, and curve boundary is got by the finite difference method;furthermore, the wheel-rail contact positions are figured out by computing the roll angles of wheelset iteratively with the dichotomy. Based on MATLAB and Visual C++, the wheel-rail contact geometrical parameters are calculated and visualized dynamically. The method achieves a quantitative analysis between equivalent conicity and lateral displacement of wheelset, then, it provides a new optimization method for the wheel-rail match. The simulation results show the algorithm is of the strong robustness and generality.

Key words: wheel-rail match, wheel-rail contact, visualization, spline interpolation, hybrid programming

摘要: 针对目前工程上采用经验和试验方法确定轮轨外形匹配的问题,提出了轮轨接触的几何外形匹配优化及其可视化算法。算法用三次样条曲线拟合轮轨外形,差分法确定插值边界条件;采用二分法迭代求解轮对侧滚角解算出轮轨接触点位置,进而得到轮轨接触几何参数;利用MATLAB及Visual C++动态地将计算结果可视化。该算法实现了轮对等效锥度与横移量的定量分析,为轮轨匹配优化提供了新的方法,仿真结果表明,该算法具有较强的鲁棒性和通用性。

关键词: 轮轨匹配, 轮轨接触, 可视化, 样条插值, 混合编程