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Experimental and Numerical Investigation on the Aerodynamic Characteristics of High-Speed Pantographs with Supporting Beam Wind Deflectors

Shiyang Song1,*, Tongxin Han2

1 Postgraduate Department, China Academy of Railway Sciences, Beijing, 100081, China
2 Locomotive & Car Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, 100081, China

* Corresponding Author: Shiyang Song. Email: email

Fluid Dynamics & Materials Processing 2024, 20(1), 127-145. https://doi.org/10.32604/fdmp.2023.030137

Abstract

Aiming to mitigate the aerodynamic lift force imbalance between pantograph strips, which exacerbates wear and affects the current collection performance of the pantograph-catenary system, a study has been conducted to support the beam deflector optimization using a combination of experimental measurements and computational fluid dynamics (CFD) simulations. The results demonstrate that the size, position, and installation orientation of the wind deflectors significantly influence the amount of force compensation. They also indicate that the front strip deflectors should be installed downwards and the rear strip deflectors upwards, thereby forming a “π” shape. Moreover, the lift force compensation provided by the wind deflectors increases with the size of the deflector. Alternative wind compensation strategies, such as control circuits, are also discussed, putting emphasis on the pros and cons of various pantograph types and wind compensation approaches.

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APA Style
Song, S., Han, T. (2024). Experimental and numerical investigation on the aerodynamic characteristics of high-speed pantographs with supporting beam wind deflectors. Fluid Dynamics & Materials Processing, 20(1), 127-145. https://doi.org/10.32604/fdmp.2023.030137
Vancouver Style
Song S, Han T. Experimental and numerical investigation on the aerodynamic characteristics of high-speed pantographs with supporting beam wind deflectors. Fluid Dyn Mater Proc. 2024;20(1):127-145 https://doi.org/10.32604/fdmp.2023.030137
IEEE Style
S. Song and T. Han, "Experimental and Numerical Investigation on the Aerodynamic Characteristics of High-Speed Pantographs with Supporting Beam Wind Deflectors," Fluid Dyn. Mater. Proc., vol. 20, no. 1, pp. 127-145. 2024. https://doi.org/10.32604/fdmp.2023.030137



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