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| 高速列车转向架舱风洞试验研究 |
| Experimental study on high-speed train bogie cabins in wind tunnel |
| Received:November 12, 2018 Revised:June 09, 2019 |
| DOI：10.7520/1001-4888-18-249 |
| 中文关键词: 高速列车 风洞试验 转向架舱 气动减阻 空气动力学 |
| 英文关键词:high-speed train wind tunnel test bogie cabin drag reduction aerodynamics |
| 基金项目: |
| Author Name | Affiliation | | ZHANG Ye* | R&D Center, CRRC Qingdao Sifang Co., Ltd., Qingdao 266111, China | | SHANG Ke-ming | R&D Center, CRRC Qingdao Sifang Co., Ltd., Qingdao 266111, China | | DU Jian | R&D Center, CRRC Qingdao Sifang Co., Ltd., Qingdao 266111, China | | QI Kai-wen | R&D Center, CRRC Qingdao Sifang Co., Ltd., Qingdao 266111, China | | TIAN Hong-lei | R&D Center, CRRC Qingdao Sifang Co., Ltd., Qingdao 266111, China | | LIN Peng | R&D Center, CRRC Qingdao Sifang Co., Ltd., Qingdao 266111, China |
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| 中文摘要: |
| 针对高速列车转向架舱的几何外形特点，提取5个设计变量，设计了6种方案，对1∶8比例3编组带路基、轨道及转向架舱的高速列车模型进行了0°及-19.8°侧偏角风洞试验研究，分析了转向架舱不同设计变量对应的高速列车气动阻力特性，得到了各设计参数的减阻效果。研究表明：转向架舱内顶面采用曲面过渡，前后壁面采用倾斜壁，裙板采用全包裙板，减小内壁纵向长度等措施，可以减小列车的气动阻力。通过不同设计变量对列车气动阻力的影响度分析，表明0°及-19.8°侧偏角2种情况下内顶面倒角及内壁纵向长度均对列车气动阻力有重要影响，上述研究结果对列车局部减阻及外形优化具有参考意义。 |
| 英文摘要: |
| According to the geometrical characteristics of high-speed train bogie cabins, five design variables are extracted and six schemes are designed. The 1∶8 scaled high-speed train model with subgrade, track and bogie cabin is tested in wind tunnel, and the side slip angles of 0° and -19.8° are used in experiments. The aerodynamic drag characteristics of high-speed train corresponding to different design variables of bogie cabins are analyzed, and the drag reduction effect of each design parameter is obtained. The results show that the aerodynamic drag of the train can be reduced when the top surface of the cabin adopts the curved transition, the front and rear walls adopt inclined walls, the skirt adopts the fully enclosed skirt plate, and the longitudinal length of the inner wall is reduced. The influence of different design variables on the aerodynamic drag is analyzed, which indicates that the inner top chamfer and the longitudinal length of the inner wall have important influences on the aerodynamic drag of the train with side slip angles of 0° and -19.8°. The results have great significance for understanding the local drag reduction and the shape optimization of the train. |
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