Train-track-bridge dynamic tests were conducted on the Shanghai Lingang Medium and Low Speed Maglev Test Line. A newly developed levitation bogie with mid-set air spring was used on the test train. The test results show that: the vertical and lateral first-order natural frequencies are 7.50 Hz and 6.00 Hz, respectively; vehicle speed has no significant effect on the vertical dynamic displacement of the bridge; within specific speed ranges, the acceleration of the test train-track-bridge system shows monotonic variation characteristics as vehicle speed changes; the lateral accelerations of the bridge, sleeper, and F-shaped rail are distributed in a wider dominant frequency band compared with the corresponding vertical accelerations; the dominant frequency bands of vibration acceleration of levitation bogie and car body are generally concentrated below 15 Hz; the vertical and lateral Sperling indexes of the test train are less than 2.5, indicating that the test train is superior in ride quality.


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    Title :

    Experimental study on dynamic performance of medium and low speed maglev train-track-bridge system


    Contributors:
    Li, Miao (author) / Luo, Shihui (author) / Ma, Weihua (author) / Lei, Cheng (author) / Li, Tie (author) / Hu, Qibin (author) / Zhang, Xiulu (author) / Han, Yapeng (author)

    Published in:

    Publication date :

    2021-05-04


    Size :

    24 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown





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