A methodology involving Design for Six Sigma (DFSS) and Multi-body dynamic simulation is employed to tune a body-on-frame vehicle, for improved ride (shake) performance. The design space is limited to four sets of symmetric body mounts for a vehicle. The stiffness and damping characteristics of the mounts are the control factors in the virtual experiment. Variation of these design parameters from the nominal settings, as well as axle size, tire and wheel combinations, tire pressure, shock damping, and vehicle speed constitute the noise factors. This approach proves to be an excellent predictor of the vehicle behavior, by which much insight as to influence of each parameter on vehicle performance is gained. Ultimately, specific recommendations for the control factor settings are provided. Subsequent hardware builds show excellent agreement with the analytical model and suggested tuning. More importantly, this methodology is effective in providing valuable insight through numerous parameter studies, completely prohibitive in the hardware environment due to high cost, long time, commitment and lack of ability to change parameters in a decoupled way.


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    Title :

    Combining DFSS and Multi-body Dynamics for Vehicle Ride Tuning


    Additional title:

    Sae Technical Papers


    Contributors:
    Wong, Jason (author) / Farhad, Max (author) / Cherian, Thomas (author) / Wu, Xuting (author)

    Conference:

    SAE World Congress & Exhibition ; 2007



    Publication date :

    2007-04-16




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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