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

作　　者：Shiyang Song Tongxin Han 

机构地区：[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

出　　处：《Fluid Dynamics & Materials Processing》2024年第1期127-145,共19页流体力学与材料加工（英文）

摘　　要：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.

关 键 词：High-speed pantograph aerodynamic lift force supporting beam wind deflectors computational fluid dynamics(CFD) 

分 类 号：O24[理学—计算数学]