Wheel–rail interaction is one of the most important research topics in railway engineering. It involves track impact response, track vibration and track safety. Track structure failures caused by wheel–rail impact forces can lead to significant economic loss for track owners through damage to rails and to the sleepers beneath. Wheel–rail impact forces occur because of imperfections in the wheels or rails such as wheel flats, irregular wheel profiles, rail corrugations and differences in the heights of rails connected at a welded joint. A wheel flat can cause a large dynamic impact force as well as a forced vibration with a high frequency, which can cause damage to the track structure. In the present work, a three-dimensional finite element (FE) model for the impact analysis induced by the wheel flat is developed by the use of the FE analysis (FEA) software package ANSYS and validated by another validated simulation. The effect of wheel flats on impact forces is thoroughly investigated. It is found that the presence of a wheel flat will significantly increase the dynamic impact force on both rail and sleeper. The impact force will monotonically increase with the size of wheel flats. The relationships between the impact force and the wheel flat size are explored from this FEA and they are important for track engineers to improve their understanding of the design and maintenance of the track system.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A dynamic wheel–rail impact analysis of railway track under wheel flat by finite element analysis


    Contributors:

    Published in:

    Vehicle System Dynamics ; 51 , 6 ; 784-797


    Publication date :

    2013


    Size :

    14 Seiten




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    A dynamic wheel–rail impact analysis of railway track under wheel flat by finite element analysis

    Bian, Jian / Gu, Yuantong / Murray, Martin Howard | Taylor & Francis Verlag | 2013


    A dynamic wheel-rail impact analysis of railway track under wheel flat by finite element analysis

    Bian,J. / Gu,Y. / Murray,M.H. et al. | Automotive engineering | 2013



    Effect of wheel flat on dynamic wheel-rail impact in railway turnouts

    Xu, Jingmang / Ma, Qiantao / Zhao, Siqi et al. | Taylor & Francis Verlag | 2022


    Wheel rail impact loads and track settlement in railway crossing

    Li, Xin / Chalmers tekniska högskola | TIBKAT | 2019