This study investigated the safety and stability of longer combination vehicles (LCVs), in particular a triple trailer combination behind a commercial tractor, which has more complicated dynamics than the more common tractor in combination with a single semitrailer. The goal was to measure and model the behavior of LCVs in simple maneuvers. Example maneuvers tested and modeled were single and double lane changes, a gradual lane change, and a constant radius curve. In addition to test track data collection and a brief highway test, two computer models of LCVs were developed. One model is based on TruckSim 17. Key Word , a lumped parameter model widely used for single semitrailer combinations. The other model was built in Adams software, which more explicitly models the geometry of the components of the vehicle, in terms of compliant structural members. Among other results, the models were able to duplicate the experimentally measured rearward amplification behavior that is characteristic of multi-unit combination vehicles.


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    Title :

    U32: Vehicle Stability and Dynamics: Longer Combination Vehicles


    Contributors:
    D. Pape (author) / M. Arant (author) / W. Brock (author) / E. Broshears (author) / T. LaClair (author)

    Publication date :

    2011


    Size :

    446 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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