LAPSE:2023.29080
Published Article
LAPSE:2023.29080
Effect of Braking Plates on the Aerodynamic Behaviors of a High-Speed Train Subjected to Crosswinds
Le Zhang, Tian Li, Jiye Zhang
April 13, 2023
Using aerodynamic resistance to provide braking force for trains is an economical braking method. It has few components to wear out and requires no energy. But the aerodynamic braking plate will significantly affect train’s aerodynamics behaviors. This paper studies the effect of the braking plates’ layout on the aerodynamic force of head car when a train is running under a crosswind. The results show that the braking plate will not only increase the drag force, but also significantly affect the lift and lateral force of the train’s head car. The installation position of the braking plates will also have a great effect on the aerodynamic force. In order to increase the drag force and weaken other aerodynamic force changes of the head car, we suggest that the first braking plate be arranged at the end of a streamlined shape, and the second braking plate be arranged at the middle of the car body. Compared with trains without braking plates, the head car’s drag force increases by 85.7%, lift force only increases by 7.6%, and side force decreases by 5.9%, when the braking plates are in operation.
Keywords
aerodynamic loads, braking plates, high-speed train, Surrogate Model
Suggested Citation
Zhang L, Li T, Zhang J. Effect of Braking Plates on the Aerodynamic Behaviors of a High-Speed Train Subjected to Crosswinds. (2023). LAPSE:2023.29080
Author Affiliations
Zhang L: State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China
Li T: State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China
Zhang J: State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China
Journal Name
Energies
Volume
14
Issue
2
Article Number
en14020401
Year
2021
Publication Date
2021-01-12
ISSN
1996-1073
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Original Submission
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PII: en14020401, Publication Type: Journal Article
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https://doi.org/10.3390/en14020401
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