This paper deals with both theoretical study and experiment on the chaotic behavior of a rolling wheelset. The main purpose of this report is to confirm the actual occurrence of the chaos in the rolling wheelset compared with numerical simulation results. In the experiment, a 115 scale model f one-axle truck is used. The truck rolls on rail-wheels of a roller rig. When the rolling speed increased, the scaled wheelset shows a chaotic movement accompanied with the hard collision against the rail-wheels. The collision was caused by the growing hunting motion. These responses were confirmed by the evaluation both of the maximal Lyapunov exponents and the correlation dimensions. The actual experiment showed a remarkable difference to the results of numerical simulation at higher rolling speeds. The difference emerges from a simplified model for the flange contact.


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    Title :

    Chaotic Oscillation of a Wheelset Rolling on Rail; Verification on Roller Rig


    Contributors:

    Published in:

    Vehicle System Dynamics ; 25 , sup1 ; 682-693


    Publication date :

    1996-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown



    Chaotic Oscillation of a Wheelset Rolling on Rail; Verification on Roller Rig

    Tanifuji, K. / Nagai, K.-I. / International Association for Vehicle System Dynamics | British Library Conference Proceedings | 1996