| INFLUENCE OF TYPICAL SUBGRADE STRUCTURES ON AERODYNAMIC CHARACTERISTICS OF HIGH SPEED TRAINS IN CROSS WIND CONDITIONS | |
Sun ZX(孙振旭) ; Yang GW(杨国伟)
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| Source Publication | PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING, 2018, VOL 2 |
| 2018 | |
| Pages | V002T11A010 |
| Conference Name | ASME Fluids Engineering Division Summer Meeting (FEDSM2018) |
| Conference Date | JUL 15-20, 2018 |
| Conference Place | Montreal, CANADA |
| Abstract | Due to geographical and environmental constraints, highspeed railways use a variety of subgrade structures such as ground, embankments with different height, viaducts, etc. When trains run on embankments and viaducts, the flow around the car body is more complex than the ground. Under the action of crosswind, there are obvious differences in the cross-wind aerodynamic characteristics of high-speed trains on different subgrade structures. The unreasonable subgrade structure will affect the cross-wind safety of the train. At the same time, the structure of the train is complex, the bogie and pantograph have an important role on the flow field characteristics of the train, and the over simplified profile of the short train cannot accurately reflect the true aerodynamic characteristics of the train. In the present paper, in order to study the influence of typical subgrade structure on the aerodynamic characteristics of high speed trains, a real high-speed train with 9 carriages at the speed of 200 km/h was taken for case study, and the details of windshields, bogies and pantographs were taken into consideration. The cross wind velocities were chosen as 20, 30, 35 and 40 m/s. The aerodynamics performance of the highspeed train under the four conditions of plane ground, 3m embankment, 6m-embankment and viaduct were simulated and compared, and the differences and regularities in the aerodynamic characteristics under cross wind conditions on different subgrade were analyzed. The results provide a reference for train safety control on complex subgrade structures under cross wind condition. |
| WOS ID | WOS:000457516200041 |
| Funding Organization | Advanced Rail Transportation Special Plan in National Key Research and Development Project [2016YFB1200601-B13] |
| ISBN | 978-0-7918-5156-2 |
| Indexed By | CPCI-S ; EI |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/78564 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | {Sun, Zhenxu、Yang, Guowei} Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Sun ZX,Yang GW. INFLUENCE OF TYPICAL SUBGRADE STRUCTURES ON AERODYNAMIC CHARACTERISTICS OF HIGH SPEED TRAINS IN CROSS WIND CONDITIONS[C]PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING, 2018, VOL 2,2018:V002T11A010. |
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| File Name/Size | DocType | Version | Access | License | ||
| IrCp2018031.pdf（1819KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
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