This paper presents and compares different control strategies for applying absolute or “skyhook” damping in active suspension systems for railway vehicles. It first examines a number of linear approaches for filtering the absolute velocity signal in order to optimise the trade-off between the random and deterministic track input requirements, and then what can be achieved using non-linear Kalman-Filter methods is explored. Studies in this paper show that an improvement of nearly 20% in ride quality can be achieved with a linear complementary filter control and over 50% by using non-linear Kalman filter methods.


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    Title :

    DISTINGUISHING BETWEEN RANDOM AND DETERMINISTIC TRACK INPUTS FOR ACTIVE RAILWAY SUSPENSIONS


    Contributors:
    LI, Hong (author) / GOODALL, Roger (author)

    Published in:

    Vehicle System Dynamics ; 29 , sup1 ; 772-777


    Publication date :

    1998-01-01


    Size :

    6 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown



    Distinguishing between Random and Deterministic Track Inputs for Active Railway Suspensions

    Li, H. / Goodall, R. / International Association for Vehicle System Dynamics | British Library Conference Proceedings | 1998


    Equivalent deterministic inputs for random processes

    ETKIN, B. / HUGHES, P. C. / ZHU, S. et al. | AIAA | 1984


    Railway Vehicle Active Suspensions

    Hedrick, J. K.Associate Professor | Taylor & Francis Verlag | 1981



    Control approaches for active lateral railway suspensions

    Pratt, I. / Goodall, R. M. / Powell, A. J. et al. | British Library Conference Proceedings | 1997