Wheel flat is one of the most common defects occurring to railway wheels. The relevant standards have specified the operational limits for wheel flats in terms of the length. Therefore, the information on the flat length is required for maintenance decision. In this sense, this paper proposes a data-driven method not only for detecting wheel-flats but also for estimating the flat length, which can be implemented for onboard condition monitoring. Firstly, A multibody dynamics model of a Y25-tank-wagon with a wheel flat of a variable length is established to generate the axlebox acceleration data at variable vehicle speeds. Then, based on the selected simulation data points, a Kriging surrogate model (KSM) is constructed to model the axlebox acceleration response to different lengths of wheel flats and different vehicle speeds. Finally, a particle swarm optimisation (PSO) based algorithm is applied to calculate the exact wheel-flat length by feeding the measured vehicle speed and the acceleration signal into the KSM model. The proposed method is validated by a field test, for which a wheel flat with a length of 20 mm was artificially produced. Simulation and experimental results have demonstrated that this method can estimate the length of wheel flats.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A data-driven method for estimating wheel flat length


    Contributors:

    Published in:

    Vehicle System Dynamics ; 58 , 9 ; 1329-1347


    Publication date :

    2020-09-01


    Size :

    19 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Multi-structure data driven wheel flat quantitative identification method and system

    XIE QINGLIN / QIAN XINYU / WEN ZEFENG et al. | European Patent Office | 2024

    Free access

    Early wheel flat detection: an automatic data-driven wavelet-based approach for railways

    Mosleh, Araliya / Meixedo, Andreia / Ribeiro, Diogo et al. | Taylor & Francis Verlag | 2023


    Wheel flat can cause or exacerbate wheel polygonization

    Ye, Yunguang / Shi, Dachuan / Krause, Philipp et al. | Taylor & Francis Verlag | 2020


    Railway vehicle wheel flat monitoring method

    LI DAZHU / CHI MAORU / LIANG SHULIN et al. | European Patent Office | 2022

    Free access

    Railcar wheel flat impact analysis

    Dick, Matthew G. / Reid, John D. | Tema Archive | 2004