An in-plane vehicle model incorporating a tunable shock absorber is developed and the ride vibration response of the vehicle model is evaluated for random road excitations. A tunable shock absorber is realized to provide variable damping by integrating pressure relief valves to a conventional shock absorber. The nonlinear restoring and damping forces due to the tunable shockabsorber are characterized by an array of equivalent linear stiffness and damping coefficients, using a generalized linearization technique based upon energy functions. The random response of the two-axle vehicle model is established using the linearization technique. The simulation results show that the vehicle ride performance can be improved considerably in the frequency range to which human body is most sensitive, via the proposed shock absorber.


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    Title :

    Response of a nonlinear vehicle suspension with tunable shock absorber to random road excitations


    Additional title:

    Beanspruchung einer nichtlinearen Radaufhängung mit einstellbaren Stoßdämpfern bei zufälligen Straßenschwingungen


    Contributors:
    Su, H. (author) / Rakheja, S. (author) / Sankar, T.S. (author)


    Publication date :

    1989


    Size :

    9 Seiten, 16 Bilder, 12 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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