• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Mechanical Engineering and Mechanics vol.2; 20051026-28; Nanjing(CN) >Vertical-lateral Model of Vehicle-track Coupling System for Linear Metro System
【24h】

Vertical-lateral Model of Vehicle-track Coupling System for Linear Metro System

机译：线性地铁系统车轨耦合系统的竖向横向模型

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

Linear metro system is developed for urban transportation which makes steel-wheeled vehicles run on steel rails. A detailed vertical-lateral model is built to analyze the two dimension coupling vibration characteristics of this system. The vehicle subsystem is modelled as a multi-body system with 31-degree-of-freedom (31DOF). The car body and two bogies each have 5DOF which are vertical displacement, lateral displacement, pitching angle, rolling angle and swaying angle. Each wheel set has 4DOF except the pitching angle. The track subsystem consists of rail and rigid foundation. The rail is modelled by finite element method, and each rail node has 4DOF. The vertical wheel-rail forces are described by Hertzian contact theory and the lateral forces are decided by Kalker linear theory. The vertical attractive forces between the linear induction motor (LIM) and its reaction plate (RP) have been modelled as special spring forces varied with the air gap, and the lateral force between them is considered as a constant. Dynamic simulation is carried out and study is conducted to assess the system dynamic characteristics. It is concluded that the air gap variation and the rail vertical acceleration increased obviously under the action of local cosine irregularity, and the peak of car body vertical acceleration reduced when the irregularity wavelength increased.
机译：线性地铁系统是为城市交通而开发的，它使钢轮车辆在钢轨上行驶。建立了详细的竖向横向模型来分析该系统的二维耦合振动特性。车辆子系统被建模为具有31自由度（31DOF）的多体系统。车身和两个转向架均具有5DOF，即垂直位移，横向位移，俯仰角，侧倾角和摇摆角。除俯仰角外，每个轮对均具有4DOF。轨道子系统由轨道和刚性基础组成。使用有限元方法对轨道进行建模，每个轨道节点具有4DOF。垂直轮轨力由赫兹接触理论描述，横向力由卡尔克线性理论确定。线性感应电动机（LIM）和其反作用板（RP）之间的垂直吸引力已被建模为特殊的弹力随气隙而变化，并且它们之间的横向力被视为一个常数。进行了动态仿真，并进行了研究以评估系统的动态特性。结论是，在局部余弦不规则的作用下，气隙变化和钢轨的垂直加速度明显增加，随着不规则波长的增加，车身垂直加速度的峰值减小。

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