| 不同风向角和地面条件下的列车空气动力性能分析 |
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| 引用本文： | 苗秀娟,高广军.不同风向角和地面条件下的列车空气动力性能分析[J].机车电传动,2006(3):33-35. |
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| 作者姓名： | 苗秀娟 高广军 |
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| 作者单位： | 1. 长沙理工大学,汽车与机械工程学院,湖南,长沙,410076;中南大学,轨道交通安全教育部重点实验室,湖南,长沙,410076
2. 长沙理工大学,汽车与机械工程学院,湖南,长沙,410076 |
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| 摘 要： | 高速列车大都采用电动车组的方式,轴重越来越轻,在强横风中极有可能造成车辆的倾覆。而在不同风向角和地面条件下列车的气动性能也会发生变化。采用大型流场计算软件FLUENT6．0 对列车在不同风向角下的气动力系数进行了计算,分别对列车在平坦路面上、路堤上以及桥梁上3种情况进行了数值模拟。计算结果表明:头车在平地上受到的侧滚力矩较大,而中间车在桥梁上受到的侧滚力矩较大。
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| 关 键 词： | 高速列车 气动性能 升力 侧向力 侧滚力矩 风向角 |
| 文章编号： | 1000-128X（2006）03-0033-03 |
| 收稿时间： | 2005-12-05 |
| 修稿时间： | 2005年12月5日 |
Analysis of Trains Aerodynamic Performance with Different Yaw Angle and Ground Condition |
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| MIAO Xiu-juan,GAO Guang-jun.Analysis of Trains Aerodynamic Performance with Different Yaw Angle and Ground Condition[J].Electric Drive For Locomotive,2006(3):33-35. |
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| Authors: | MIAO Xiu-juan GAO Guang-jun |
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| Abstract: | EMUs are very popular for high speed trains, which are easily get overturned in case of strong lateral wind due to lower and lower axle weight. The train aerodynamic performance will change with different yaw angle and ground condition. The aerodynamic coefficients of different yaw angle are calculated using the FLUENT 6.0 software. Simulations are carried out for trains in straight and plain rails, embankments and bridges. The calculation results show that the front power car are attacked by greatest side rolling torque in straight and plain rails and the same for the middle cars while in bridges. |
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| Keywords: | high speed train aerodynamic coefficient lift force side force side rolling torque yaw angle |
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