An in-depth understanding of car-body vibration characteristics is the key to developing more reasonable operational safety and discomfort evaluation indicators. However, few scholars or research institutions have focused on this topic, and the car-body vibration characteristics that are caused by different complex aerodynamic factors are not clear. Therefore, in this study, different train car-body vibrations under different conditions were investigated using full-scale tests from 2014 to 2016. The results revealed that the car-body vibration for different aerodynamic conditions was mainly low-frequency rolling and traversing motion below 1 Hz, and the primary frequency was close to the car-body lower-centre rolling natural frequency. In addition, the evaluations of the train operational safety and the vibrational comfort could be considered coupled under strong wind conditions. There was a strong line relationship between the car-body roll angle and the train overturning coefficient under strong wind conditions, hence, predicting the train’s overturning risk by the car-body roll angle was feasible.


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    Title :

    Investigating the car-body vibration of high-speed trains under different operating conditions with full-scale tests


    Additional title:

    VEHICLE SYSTEM DYNAMICS
    D. LIU ET AL.


    Contributors:
    Liu, Dongrun (author) / Li, Tian (author) / Meng, Shi (author) / Lu, Zhaijun (author) / Zhong, Mu (author)

    Published in:

    Vehicle System Dynamics ; 60 , 2 ; 633-652


    Publication date :

    2022-02-01


    Size :

    20 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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