磁悬浮列车横风稳定性的数值分析

基金项目:

国家自然科学基金项目 59975078

Numerical Analysis of Crosswind Stability of Magnetically Levitated Trains

1.
College of Mech. Eng., Southwest Jiaotong University, Chengdu 610031, China
2.
Traction Power Research Center, Southwest Jiaotong University, Chengdu 610031, China

摘要: 利用二维定常不可压缩Navier- Stokes方程、k-ε两方程紊流模型, 采用有限体积法分析计算了不同车轨结构的磁浮列车横风稳定性, 并与轮轨型列车的横风稳定性作了比较。数值分析结果表明, 在横向风的作用下, 轮轨型列车的横向稳定性优于磁浮列车, 而吸力型磁浮列车的横向稳定性又优于U型线路斥力型磁浮列车。
- 磁浮列车 /
- 稳定性 /
- 横向风 /
- 数值分析
Abstract: Using 2D, steady state, incompressible Navier Storkes equation and two equations k ε turbulent model, the crosswind stability of magnetically levitated trains in different structures between guideway and vehicles have been calculated by finite volume method. The crosswind stabilities of the wheel rail trains and the magnetically levitated trains are compared. Resultsobtained show that the crosswind stability of the wheel rail vehicle is better than that of the magnetic levitated vehicle, and the crosswind stability of the EMS maglev vehicle is better than that of the EDS maglev vehicle.
- magnetically levitated train /
- stability /
- crosswind /
- numerical analysis

图 1 3种类型列车横剖面

下载: 全尺寸图片幻灯片

图 2 模型1流场计算网格

下载: 全尺寸图片幻灯片

图 3 模型2流场计算网格

下载: 全尺寸图片幻灯片

图 4 模型3流场计算网格

下载: 全尺寸图片幻灯片

图 5 模型1计算流场速度(a) 和压力(b) 分布

下载: 全尺寸图片幻灯片

图 6 模型2计算流场速度(a) 和压力(b) 分布

下载: 全尺寸图片幻灯片

图 7 模型3计算流场速度(a) 和压力(b) 分布

下载: 全尺寸图片幻灯片

表 1 3种类型列车C_x、C_xy的计算值

模型类别模型1 模型2 模型3

侧向力系数C_x 0.173107 0.165518 0.169099

侧翻力矩系数C_xy 0.284860 0.378436 0.612842

下载: 导出CSV

[1]	CAI Y, CHEN S S. Dynamic characteristica of magnetically-levitated vehicle systems[J]. Applied Mechanics Reviews, 1997, 50: 647-670. doi: 10.1115/1.3101676
[2]	CHERCHAS D B. A dynamics simulation for a high speed magnetically levitated guided ground vehicle[J]. Journal of Dynamic System, Measurement, and Control, Transaction of the ASME, 1979, 101: 223-229. doi: 10.1115/1.3426429
[3]	GARG D. P, BARROWS T.M. Modeling and dynamic response of maglev vehicles subjected to crosswind gusts[J]. Journal of Dynamic System, Measurement, and Control, Transaction of the ASME, 1981, 103.
[4]	TYLL J S. Experimental studies of magnetic levitation train aerodynamics[J]. AIAA Journal, 1996, 34 (12): 2465-2470. doi: 10.2514/3.13425
[5]	WONG J Y. Performance and stability characteristics of an electrodynamically levitated vehicle over a split guideway[J]. Journal of Dynamic System, Measurement, and Control, Transaction of the ASME, 1976, 98(3): 277-285. doi: 10.1115/1.3427035
[6]	曾佑文. 磁浮列车车辆-轨道耦合振动及悬挂参数研究[J]. 西南交通大学学报, 1999, 34(2): 168-173. https://www.cnki.com.cn/Article/CJFDTOTAL-XNJT902.008.htm
[7]	费祥麟. 高等流体力学[M]. 西安: 西安交通大学出版社, 1989.
[8]	陶文铨. 数值传热学[M]. 西安: 西安交通大学出版社, 1988.
[9]	谭维炎. 计算浅水动力学-有限体积法的应用[M]. 北京: 清华大学出版社, 1998.