| 强侧风对受电弓的气动作用规律 |
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| 引用本文： | 赵萌,毛军.强侧风对受电弓的气动作用规律[J].北方交通大学学报,2012(3):6-11. |
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| 作者姓名： | 赵萌 毛军 |
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| 作者单位： | 北京交通大学土木建筑工程学院,北京100044 |
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| 基金项目： | 中央高校基本科研业务费专项资金资助（C11JB00010） |
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| 摘 要： | 建立了弓-车-网组合模型,基于压力修正法的N-S方程,采用分离式求解SIMPLE算法,对强侧风条件下的受电弓气动特性进行了数值模拟.分析了受电弓的气动荷载在不同侧风速度,不同风向角下的变化规律及强侧风对受电弓绕流流场的影响.结果表明：随侧风速度及角度的增大,受电弓的气动力及力矩呈非线性变化;受电弓流场区域内产生大量漩涡及低速尾流区,接触网及车体对受电弓流场有明显影响.研究结果可为提高受电弓在侧风作用下的稳定性和安全性提供一定的理论依据.
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| 关 键 词： | 高速动车组 受电弓 强侧风 绕流场 气动特性 |
Effect on strong crosswind to the aerodynamic of pantograph |
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| ZHAO Meng,MAO Jun.Effect on strong crosswind to the aerodynamic of pantograph[J].Journal of Northern Jiaotong University,2012(3):6-11. |
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| Authors: | ZHAO Meng MAO Jun |
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| Institution: | (School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China) |
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| Abstract: | In order to enhance the safety of the pantograph, aerodynamic laws of the crosswind influence on pantograph was studied in this paper. N-S Equation and SMIPLE algorithm were adopted to simulate the behavior of train-pantograph-net system in the strong crosswind environment. The variation of aerodynamic force and moment with different wind speed and angle were analyzed. The results show that, with the increment of crosswind speed and angle, the distributions of pantograph aerody- namic force and moment were non-linear and complex. Wake vortexes and low speed zoom occurred in the flow field, while the contact net influenced the flow field significantly. |
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| Keywords: | high-speed electric locomotive pantograph strong crosswind flow field aerodynamic characteristics |
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