横风作用下跨线运行动车组转向架气动力变化规律研究

doi:10.3901/JME.2020.22.219

机械工程学报 ›› 2020, Vol. 56 ›› Issue (22): 219-226.doi: 10.3901/JME.2020.22.219

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横风作用下跨线运行动车组转向架气动力变化规律研究

黄尊地¹, 池茂儒², 冯永华³, 常宁¹, 王前选¹

1. 五邑大学轨道交通学院江门 529020;
2. 西南交通大学牵引动力国家重点实验室成都 610031;
3. 中车青岛四方机车车辆股份有限公司青岛 266111

收稿日期:2019-12-23 修回日期:2020-03-06 出版日期:2020-11-20 发布日期:2020-12-31
通讯作者: 池茂儒(通信作者),男,1973年出生,研究员,博士研究生导师。主要研究方向为车辆系统动力学。E-mail:cmr2000@163.com
作者简介:黄尊地,男,1987年出生,副教授,硕士研究生导师。主要研究方向为轨道交通空气动力学。E-mail:wyuhzd@163.com
基金资助:
国家重点研发计划“先进轨道交通”重点专项（2018YFB1201701-07）和广东省基础与应用基础研究基金青年基金（2019A1515111052）资助项目。

Study on the Aerodynamic Change Law of EMU Bogies of Running-across-lines under Cross-wind Effect

HUANG Zundi¹, CHI Maoru², FENG Yonghua³, CHANG Ning¹, WANG Qianxuan¹

1. School of Rail Transportation, Wuyi University, Jiangmen 529020;
2. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031;
3. CRRC Qingdao Sifang Co., Ltd., Qingdao 266111

Received:2019-12-23 Revised:2020-03-06 Online:2020-11-20 Published:2020-12-31

摘要/Abstract

摘要： 为跨线运行动车组自适应转向架的设计提供理论依据，开展不同横风风速下高-低速动车组转向架气动力变化规律研究。建立三维模型，生成混合网格，采用k-epsilon双方程湍流模型进行稳态计算以及Large Eddy Simulation进行非稳态计算，并通过风洞试验验证其准确性。耦合车速和风速，基于上述仿真算法得出结论：各个转向架的阻力和侧向力变化规律基本一致；动车组运行速度对转向架阻力的影响敏感度大于横风风速，中间车转向架受到的阻力较大；横风风速对转向架侧向力的影响敏感度大于动车组运行速度，尾车转向架的侧向力明显较大，横向运行稳定性最差；转向架1和转向架6的垂向力变化规律类似，转向架2至转向架5的垂向力变化规律类似。

关键词: 横风, 跨线运行, 动车组转向架, 气动力, 风洞试验, 数值计算

Abstract: Research on the aerodynamic change law of high-low speed EMU bogies under different cross wind speed are carried out. Research results provide theoretical basis for the design of EMU adaptive bogies of running across lines. A three-dimensional model is established, and a hybrid mesh is generated. The k-epsilon double-equation turbulence model is used for steady-state calculations and Large Eddy Simulation is used for unsteady-state calculations. The accuracy is verified by wind tunnel test. Coupling vehicle speed and wind speed, based on the above simulation algorithm, it is concluded that change law of drag and the lateral force of each bogie is basically consistent; the effect of EMU speed on the drag of bogies is greater than that of cross wind speed; the drag of bogies of the intermediate vehicle are relatively large; the effect of cross wind speed on the lateral force of the bogie is greater than that of EMU speed; the lateral force of the tail car bogies are significantly larger, and the lateral running stability are the worst; the vertical force law of bogies 1 and 6 are similar, and law of bogies 2 to 5 are similar.

Key words: cross wind, running across lines, EMU bogies, aerodynamic, wind tunnel test, numerical calculation

中图分类号:

U270

黄尊地, 池茂儒, 冯永华, 常宁, 王前选. 横风作用下跨线运行动车组转向架气动力变化规律研究[J]. 机械工程学报, 2020, 56(22): 219-226.

HUANG Zundi, CHI Maoru, FENG Yonghua, CHANG Ning, WANG Qianxuan. Study on the Aerodynamic Change Law of EMU Bogies of Running-across-lines under Cross-wind Effect[J]. Journal of Mechanical Engineering, 2020, 56(22): 219-226.

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横风作用下跨线运行动车组转向架气动力变化规律研究

Study on the Aerodynamic Change Law of EMU Bogies of Running-across-lines under Cross-wind Effect

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