An investigation of the vertical dynamics of a tractor semi-trailer traversing a random road profile was conducted. This paper presents the development of a 14 degree-of-freedom (DOF), dynamic ride model of a tractor semi-trailer. It is based on work previously conducted by Vaduri and Law [1] and Law et al [2]. The DOFs include: (a) vertical displacements of each of the five axles, the tractor frame, the engine on its mounts, the cab on its suspension, and the driver's seat; (b) pitch displacements of the trailer with respect to the tractor, the cab, and the rigid tractor frame; and, (c) the first bending or beaming modes of the tractor and trailer frames. The model also incorporates suspension friction, and tire non-uniformities. The simulation of the model is conducted using MATLAB software.Further, the model is used to examine the effects on ride and pavement loading of wide-base and conventional tires, suspension friction, tractor and trailer beaming, and statistical variations in parameters such as tire pressure, axle suspension stiffness, etc.


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    Title :

    Ride Dynamics and Pavement Loading of Tractor Semi-Trailers on Randomly Rough Roads


    Additional title:

    Sae Technical Papers


    Contributors:
    Trangsrud, C. (author) / Law, E. H. (author) / Janajreh, I. (author)

    Conference:

    SAE Commercial Vehicle Engineering Congress & Exhibition ; 2004



    Publication date :

    2004-10-26




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    2004-01-2622 Ride Dynamics and Pavement Loading of Tractor Semi-Trailers on Randomly Rough Roads

    Trangsrud, C. / Law, E. H. / Janajreh, I. et al. | British Library Conference Proceedings | 2004


    Ride dynamics and pavement loading of tractor semi-trailer on randomly rough roads

    Trangsrud,C. / Law,E.H. / Janajreh,I. et al. | Automotive engineering | 2004


    Development of a simulation assessment of ride quality of tractor semi-trailers

    Vaduri,S. / Law,E.H. / Clemson Univ.,US | Automotive engineering | 1993


    Development of a Simulation for Assessment of Ride Quality of Tractor Semi-Trailers

    Vaduri, S. / Law, E. H. / SAE | British Library Conference Proceedings | 1993


    Development of a Simulation for Assessment of Ride Quality of Tractor Semi-Trailers

    Law, E. Harry / Vaduri, Sunder | SAE Technical Papers | 1993