Reducing aerodynamic noise emitted from a pantograph head and its support, which are the pantographs’ dominant aerodynamic noise sources, is among the key environmental challenges facing the further acceleration of high-speed trains. This paper shows three aerodynamic noise reduction strategies applicable to actual trains: applying multi-segmented smooth-profile pantograph head, shape improvement of the pantograph head support, and covering of the pantograph head support with a layer of porous material. Wind tunnel tests confirmed that aerodynamic noise can be reduced by 2.7 dB compared to pantographs in current use by applying these strategies.


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    Title :

    Reduction of Aerodynamic Noise Emitted from Pantograph by Applying Multi-Segmented Smooth Profile Pantograph Head and Low Noise Pantograph Head Support


    Additional title:

    Lect.Notes Mechanical Engineering



    Conference:

    International Workshop on Railway Noise ; 2022 ; Shanghai, China December 07, 2022 - December 09, 2022



    Publication date :

    2024-02-24


    Size :

    9 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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