Turning maneuvers performed by railway cars, imply the development of steering forces at the wheel-track interface, whose magnitude depends on a set of properties and operating conditions related to the vehicle and to the infrastructure, including track´s turning radius and vehicle´s yaw resistance. Yaw resistance integrates two components. On the one hand, there is the yaw stiffness, as a function of the different vehicle suspension components. On the other hand, there is the dry friction at the centre plate. Such yaw resistance of the car´s bogies, has a two-contradictory effect on railway performance, as a flexible bogie reduces the level of the steering forces, but at the same time, it increases the probability of having hunting instability. A variable yaw resistance, with high values at straight track segments and low values at curved tracks, seems to be an interesting design. In this paper, a variable friction center plate is proposed, aiming at maximizing the yaw resistance on straight track segments, and minimizing such resistance at curved tracks. The conceptual design of this device is described, together with its ability to reduce the yaw torque. Benefits of this device, regarding the transport energy consumption and the magnitude of the steering forces, are estimated on the order of 1 to 10, when comparing the proposed design with the standard center plate design.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A variable friction centre plate


    Additional title:

    Mechan. Machine Science


    Contributors:

    Conference:

    IFToMM World Congress on Mechanism and Machine Science ; 2019 ; Krakow, Poland July 15, 2019 - July 18, 2019



    Publication date :

    2019-06-14


    Size :

    10 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    Experimental assessing of the rail forces due to bogies’ centre plate friction

    Romero Navarrete, José A. / Otremba, Frank / Hurtado, Gerardo Hurtado | Springer Verlag | 2019


    Friction plate, friction plate control method, friction plate control device and vehicle

    TAO QINGHUA / PI SHENGNAN / TIAN DASHUAI et al. | European Patent Office | 2024

    Free access

    Wet friction plate

    TOKUMASU JUN / TOMINAGA SHOUHEI | European Patent Office | 2015

    Free access


    Minimising wheel wear by optimising the primary suspension stiffness and centre plate friction of self-steering bogies

    Fergusson, S. N. / Fröhling, R. D. / Klopper, H. | Taylor & Francis Verlag | 2008