In this paper the equations of motion for a twenty four degree of freedom car and caravan model are developed using Lagrange's equations for quasi-coordinates. These equations are combined with non-linear suspension and tyre characteristics within the simulation environment Bath fp. Caravan dimensional and suspension parameters are measured and used together with data from a fully validated car simulation model to predict high speed instability and handling behaviour. An instrumented car and caravan is tested at a range of speed conditions and good agreement bewteen measurement and prediction is achieved. Following validation, the simulation model can be used to investigate parameters which cannot easily be measured leading to an improved understanding of high speed instability. It is argued that only with a non-linear simulation model which includes the principal car and caravan degrees of freedom can reasonable confidence in the accuracy of prediction be justified. This approach is common place in car dynamics, but to the author's knowledge, has not been used for the prediction of coupled car/caravan pairs.


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    Title :

    Simulation of coupled car and caravan handling behaviour


    Additional title:

    Simulation des Lenkverhaltens eines Pkws mit angekoppeltem Wohnanhänger


    Contributors:
    Fratila, D. (author) / Darling, J. (author)

    Published in:

    Vehicle System Dynamics ; 26 , 6 ; 397-429


    Publication date :

    1996


    Size :

    33 Seiten, 14 Bilder, 3 Tabellen, 17 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Simulation of Coupled Car and Caravan Handling Behaviour

    FRATILA, D. / DARLING, J. | Taylor & Francis Verlag | 1996



    Simulation of coupled car and caravan handling behavior

    Fratila,D. / Darling,J. / Univ.of Bath,School of Mech.Engng.,GB | Automotive engineering | 1996


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