In this paper, a theoretical mechanical model for the brake shoe is set up according to the foundation brake unit of railway freight cars, and it indicates that the friction moment is the origin resulting in brake shoe eccentric wear. On this basis, the pressure distribution formula on the brake shoe is derived when the train brakes in forward and backward direction respectively. The analysis results show that if the wheel and the brake shoe are concentric, the ratio of the revolving-in end pressure to the revolving-out end pressure in wheel forward revolving is larger than that in wheel backward revolving. It is consistent with the phenomena that upper eccentric wear often appears on the brake shoe in practice. Further research reveals that the degree of the eccentric wear is determined by the braking force action style, which is the theoretical basis for the design revision. In addition, the RecurDyn Multi-body Dynamics software is used to build the rigid-flexible coupling dynamics model for the foundation brake unit. The simulation experiment verified the analysis result. The research outcome provides the theoretical basis and technical support for further design improvement of the foundation brake unit in railway freight cars.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Research on Brake Shoe Eccentric Wear Mechanism by Analytical Method and Virtual Experiment


    Contributors:


    Publication date :

    2014


    Size :

    6 Seiten




    Type of media :

    Article/Chapter (Book)


    Type of material :

    Print


    Language :

    English




    Anti-eccentric-wear brake shoe gap adjusting device and mounting method

    ZHAI FENGYU / WANG WEI | European Patent Office | 2023

    Free access

    Research on RecurDyn Based Simulation Method for the Brake Shoe Eccentric Wear in Railway Freight Cars

    Lu, Bi Hong ;Zhang, Yu ;Qu, Bao Zhang | Trans Tech Publications | 2012


    Research on RecurDyn Based Simulation Method for the Brake Shoe Eccentric Wear in Railway Freight Cars

    Lu, B.H. / Zhang, Y. / Qu, B.Z. et al. | British Library Conference Proceedings | 2012



    Brake shoe holder and brake shoe fixing mechanism

    ZHAO YANLI / LYU HUANXIAO / HAN XIAOHUI et al. | European Patent Office | 2021

    Free access