Generic linear models were developed of a freight car (with a characteristic North American three-piece truck) on tangent track and on NRC's Curved Track Simulator (CTS). The models were developed using the generalized multi body dynamics software MEDYNA.

    Predictions were made of the theoretical linear model hunting (lateral stability) characteristics of the freight car, i.e., the critical speeds and frequencies, for five different configurations: (a) freight car on track, (b) the freight car's front truck on the CTS and its rear truck on track, (c) freight car on the CTS, (d) a single truck on track, and (e) single truck on the CTS. These were compared with the Association of American Railroads' field test data for an 80-ton hopper car equipped with A-3 ride control trucks.

    Good agreement was achieved among all the analytical models, with all the models indicating a range of hunting speeds of 2% from the highest to lowest. The largest discrepancy, approximately 6%, was indicated between the models and the field test data.


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    Title :

    MODELLING AND SIMULATION OF THE HUNTING OF A THREE-PIECE RAILWAY TRUCK ON NRC CURVED TRACK SIMULATOR


    Contributors:

    Published in:

    Vehicle System Dynamics ; 23 , sup1 ; 105-115


    Publication date :

    1994-01-01


    Size :

    11 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Modelling and Simulation of the Hunting of a Three-Piece Railway Truck on NRC Curved Track Simulator

    Dukkipati, R. V. / International Association for Vehicle System Dynamics | British Library Conference Proceedings | 1994



    Modeling and simulation of the hunting of a three-piece railway truck on NRC curved track simulator

    Dukkipati,R.V. / National Res.Council of Canada,Centre of Surface Transportation Technol.,CA | Automotive engineering | 1994



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