The steady-state turning behavior of tractor-semi-trailer vehicles is examined by means of a model that consists of a system of rigid bodies possessing four degrees of freedom. The equations governing steady-turning are derived without linearization in any of the motion variables. A rational basis is established for the determination of the wheel-roadway interaction forces. The side forces are expressed as nonlinear functions of tire slip angles, and the effects of longitudinal and lateral load transfer are taken into account by determining the increment or decrement in the normal force at each wheel due to lateral and longitudinal acceleration components. A methodology is developed for solving the resulting system of variously nonlinear and transcendental equations and this methodology is used to study the steady-state responses of a specific vehicle combination performing a constant steer angle turn, a constant radius turn, and a constant speed turn. Substantial quantitative (and at times qualitative) differences are found to exist even at speeds well within speed ranges of practical interest. (de Posamentier)


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    Title :

    Steady turning of tractor-semitrailer vehicles


    Additional title:

    Kurvenverhalten von Sattelschlepperkombinationen


    Contributors:
    Eke, F.O. (author)

    Publication date :

    1980


    Size :

    128 Seiten


    Type of media :

    Theses


    Type of material :

    Print


    Language :

    English




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