Wheel polygonalisation, as a common phenomenon in railway vehicles, will worsen the dynamic effect of wheel-rail and affect running safety. Detection of the polygonal wear is essential for railway vehicle maintenance and running safety. Therefore, a novel polygonal wear detection method based on vehicle vibration measurements is proposed in this paper. Firstly, the axle box vertical acceleration signal is decomposed into multiple intrinsic mode functions (IMFs) by the variational mode decomposition (VMD) algorithm. Then, the observed vibration signal composed of multiple IMFs is analyzed by the independent component analysis (ICA) algorithm, and the independent component related to polygonal wear is selected according to their correlation coefficients. Finally, the optimal independent component is used to calculate the order and amplitude of the polygonal wear by the inertia principle. To verify the effectiveness of the proposed method, the simulation signal and axle box acceleration signal of measured data are implemented. Experimental results demonstrate that the proposed method can effectively estimate the order and amplitude of the polygonal wear.


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    Title :

    Polygonal Wheel Detection of Railway Vehicles Based on VMD-FastICA and Inertial Principle


    Additional title:

    Lect.Notes Mechanical Engineering


    Contributors:
    Orlova, Anna (editor) / Cole, David (editor) / Xie, Bo (author) / Chen, Shiqian (author) / Wang, Kaiyun (author) / Yang, Yunfan (author) / Zhai, Wanming (author)

    Conference:

    The IAVSD International Symposium on Dynamics of Vehicles on Roads and Tracks ; 2021 August 17, 2021 - August 19, 2021



    Publication date :

    2022-08-06


    Size :

    10 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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