...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>KSME International Journal >A Computational Efficient General Wheel-Rail Contact Detection Method
【24h】

A Computational Efficient General Wheel-Rail Contact Detection Method

机译：一种计算有效的通用轮轨接触检测方法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The development and implementation of an appropriate methodology for the accurate geometric description of track models is proposed in the framework of multibody dynamics and it includes the representation of the track spatial geometry and its irregularities. The wheel and rail surfaces are parameterized to represent any wheel and rail profiles obtained from direct measurements or design requirements. A fully generic methodology to determine, online during the dynamic simulation, the coordinates of the contact points, even when the most general three dimensional motion of the wheelset with respect to the rails is proposed. This methodology is applied to study specific issues in railway dynamics such as the flange contact problem and lead and lag contact configurations. A formulation for the description of the normal contact forces, which result from the wheel-rail interaction, is also presented. The tangential creep forces and moments that develop in the wheel-rail contact area are evaluated using: Kalker linear theory; Heuristic force method; Polach formulation. The methodology is implemented in a general multibody code. The discussion is supported through the application of the methodology to the railway vehicle ML95, used by the Lisbon metro company.
机译：在多体动力学的框架内，提出了一种用于轨道模型精确几何描述的适当方法的开发和实现，该方法包括轨道空间几何及其不规则性的表示。车轮和轨道表面经过参数化，以表示从直接测量或设计要求获得的任何车轮和轨道轮廓。提出了一种完全通用的方法，即使在轮对相对于导轨进行最一般的三维运动时，也可以在线确定动态模拟过程中接触点的坐标。该方法用于研究铁路动力学中的特定问题，例如法兰接触问题以及超前和滞后接触配置。还提出了一种描述法向接触力的公式，该法向力是由轮轨相互作用产生的。轮轨接触区域中产生的切向蠕变力和力矩的计算方法如下：Kalker线性理论;启发式力法;鳕鱼配方。该方法以通用的多主体代码实现。通过将方法论应用于里斯本地铁公司使用的ML95型铁路车辆，可以为讨论提供支持。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号