| 车辆-轨道耦合动力学钢轨模型求解方法 |
| |
| 引用本文： | 张健, 金学松, 肖新标, 温泽峰, 吴昌华. 车辆-轨道耦合动力学钢轨模型求解方法[J]. 交通运输工程学报, 2011, 11(2): 32-38. doi: 10.19818/j.cnki.1671-1637.2011.02.006 |
| |
| 作者姓名： | 张健 金学松 肖新标 温泽峰 吴昌华 |
| |
| 作者单位： | 1.大连理工大学 工业装备结构分析国家重点实验室，辽宁 大连 116024;;2.西南交通大学 牵引动力国家重点实验室，四川 成都 610031 |
| |
| 基金项目： | 国家973计划项目(2007CB714702); 国家自然科学基金项目(50821063,50875221) |
| |
| 摘 要： | 应用车辆-轨道非线性耦合动力学模型, 分析了采用解析方法的模态叠加法、有限元法的模态叠加法和有限元法的直接积分法求解车辆-轨道耦合动力学钢轨模型的计算精度与计算效率。选取Bernoulli-Euler梁或Rayleigh-Timoshenko梁模拟钢轨, 采用不同类型单元离散钢轨模型, 并利用显式积分方法求解车辆-轨道耦合动力学的响应。计算结果表明: 当采用Bernoulli-Euler梁钢轨模型和轨道激励频率较低时, 采用协调质量阵的直接积分法计算时间是解析方法的模态叠加法的28.8倍, 各种计算方法的计算结果接近; 当采用Rayleigh-Timoshenko梁钢轨模型和轨道激励频率较低时, 可以忽略Rayleigh-Timoshenko梁的转动惯量对车辆-轨道耦合动力学模型的响应影响; 解析法的模态叠加法的计算时间比混合单元的慢64.5%。
|
| 关 键 词： | 钢轨模型 有限元法 模态叠加法 Bernoulli-Euler梁 Rayleigh-Timoshenko梁 |
| 收稿时间： | 2010-11-11 |
Solution methods of rail model in vehicle-track coupling dynamics |
| |
| ZHANG Jian, JIN Xue-song, XIAO Xin-biao, WEN Ze-feng, WU Chang-hua. Solution methods of rail model in vehicle-track coupling dynamics[J]. Journal of Traffic and Transportation Engineering, 2011, 11(2): 32-38. doi: 10.19818/j.cnki.1671-1637.2011.02.006 |
| |
| Authors: | ZHANG Jian JIN Xue-song XIAO Xin-biao WEN Ze-feng WU Chang-hua |
| |
| Affiliation: | 1. State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University ofTechnology, Dalian 116024, Liaoning, China;;2. Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, Sichuan, China |
| |
| Abstract: | The computational accuracies and efficiencies of different methods for solving dynamic rail model were investigated with vehicle-track nonlinear coupling dynamics model.The methods were modal superposition method based on analytical expression,modal superposition method based on FEM,and direct integration method based on FEM.Rail was modeled by Bernoulli-Euler beam or Rayleigh-Timoshenko beam,and rail model was divided by different types of elements.The response of vehicle-track coupling dynamics was solved... |
| |
| Keywords: | rail model finite element method modal superposition method Bernoulli-Euler beam Rayleigh-Timoshenko beam |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《交通运输工程学报》浏览原始摘要信息 |
|
点击此处可从《交通运输工程学报》下载全文 |
|
