Vibration isolation performance has been investigated for a vehicle system supported on a damper-controlled variable-spring-stiffness suspension system. A half-car model has been analysed for different values of damping ratio, relative damping ratio, and mass ratio. The semi-active control of a half-car model has been investigated with the help of a force generator as well as with optimal control theory. The results show that a damper-controlled variable-stiffness suspension improves the vibration isolation performance of the suspension system. It has been found that a lower damping ratio, a relative damping ratio of unity, and a higher mass ratio gives optimum reduction in the transmissibility of motion from road surface to the vehicle body. The semi-active control of a half-car model supported on a damper-controlled variable-spring-stiffness suspension can be achieved using a force generator or an actuator. The use of a force generator can minimize the power required to control the damper. A full-state feedback and linear quadratic regulator control theory gives better results for higher mass ratios.


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    Title :

    Vibration analysis of a vehicle system supported on a damper-controlled variable-spring-stiffness suspension


    Contributors:
    Ghosh, M.K. (author) / Dinavahi, R. (author)


    Publication date :

    2005


    Size :

    13 Seiten, 15 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





    Vibration analysis of a vehicle system supported on a damper-controlled variable-spring-stiffness suspension

    Ghosh,M.K. / Dinavahi,R. / Inst.of Technol.Banaras,IN | Automotive engineering | 2005



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