This paper presents vibration control performance of a semi-active electrorheological (ER) seat suspension incorporating a vibration model of the human body. A cylindrical type of ER seat damper is manufactured and its field-dependent damping force is experimentally evaluated. A human body model is derived and integrated with the governing equations of an ER seat suspension, which consists of seat, spring, and ER seat damper. The seat-driver model is then reduced through a balanced model reduction in order to design a state observer from which the state of each human body segment is obtained for evaluation. A semi-active skyhook controller is then designed, and control responses (ride quality) are evaluated in both time and frequency domains through computer simulation and experimental realization. In addition, a comparison of the proposed semi-active ER seat suspension to a conventional passive seat suspension system is undertaken.


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    Title :

    Ride quality investigation of an electrorheological seat suspension to minimize human body vibrations


    Contributors:
    Han, Y M (author) / Jung, J Y (author) / Choi, S B (author) / Choi, Y T (author) / Wereley, N M (author)


    Publication date :

    2006-02-01


    Size :

    12 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English