Our understanding of the dynamics of railway track and of the wheels and vehicles which run over it has increased enormously in the last decade. This development has been demanded by railway administrations themselves: faster trains require better standards of track, but have also caused damage of unforseen severity. This damage has arisen largely from dynamic loading caused by wheelflats, railjoints, dipped welds, corrugation, poorly ballasted sections of track and the like. An understanding of track movement can suggest improved designs of track and ways in which present maintenance costs can be reduced. The development of more sophisiticated mathematical models of track and wheelset has been made feasible by the computing resources which are now commonly available, but need not always be exploited to their fullest extent. The purpose of this paper is to discuss some of the developments which have been made in modelling the system of vehicle and track, what results and conclusions have been drawn from these investigations, and some areas in which is inadequate. The emphasis here is on the vertical dynamic response, although consideration is also given to lateral and longitudinal dynamics. It is important to the practising engineer who has an inelastic timetable and meagre computing resources to know when the sophistication of complex models is unnecessary: this paper discusses what should be included in a model and what is superfluous.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Dynamic Modelling of Railway Track and Wheelsets


    Contributors:

    Publication date :

    1984


    Size :

    18 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Railway Wheelsets

    Wise, S | SAGE Publications | 1990


    CRADLE FOR RAILWAY WHEELSETS

    ARTEMENKOV NIKITA ANATOLIEVICH | European Patent Office | 2025

    Free access

    High frequency railway vehicle-track dynamics through flexible rotating wheelsets

    Baeza, L. / Fayos, J. / Roda, A. et al. | Tema Archive | 2008


    High frequency railway vehicle-track dynamics through flexible rotating wheelsets

    Baeza, L. / Fayos, J. / Roda, A. et al. | Taylor & Francis Verlag | 2008