Aerodynamic noise becomes a significant source of railway noise at speeds above 300 km/h. The bogie of a high-speed train area is one of the most relevant aerodynamic noise sources. Semi-empirical component-based models have been used for bogie aerodynamic noise prediction because they allow fast and cheap calculations compared with numerical methods. A semi-empirical component-based model to predict high-speed train bogie aerodynamic noise is being developed based on an existing model already used to predict pantograph noise. Thus, noise tests were conducted in the Railway Technical Research Institute’s anechoic wind tunnel placed in Kunitachi for different flow speeds using simple shape-representing simplified bogie components and a simplified 1/5 scale bogie placed inside a cavity. The noise spectra radiated by a cube at different vertical positions and by two cubes in tandem are presented. These are used to adjust the empirical constants of the prediction model and assess the low-frequency interaction noise correction. The noise radiated by the complete simplified bogie and without some components are also presented, including the contribution of each bogie component to the overall noise.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Component-Based Model to Predict Aerodynamic Noise from High-Speed Train Bogies


    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 :

    10 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English





    TRAIN USING HINGED BOGIES

    WANG JIAXIN / ZHANG GUIXING / LU NA et al. | European Patent Office | 2023

    Free access

    SWING MOTION TYPE WELDED BOGIES FOR HIGH-SPEED CARGO TRAIN

    European Patent Office | 2019

    Free access

    SWING MOTION TYPE WELDED BOGIES FOR HIGH-SPEED CARGO TRAIN

    PARK KEE JUN / HONG JAI SUNG / CHUNG JONG DUCK et al. | European Patent Office | 2019

    Free access