An Investigation of the Vibration Isolator Equipped with Dual Dynamic Dampers as a Damping Element : 1st Report, Optimum Adjustment Condition for Dual Dynamic Dampers

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In order to improve the isolation performance of conventional vibration isolators, this paper proposes an application of dual dynamic dampers in place of viscous damping elements in the vibration isolator. The dual dynamic dampers equivalent in total size to a single one can be applied in a limited space. To reduce effectively the transmissibility at resonance peak, the optimum adjustment condition of the dual dynamic dampers is investigated theoretically and the design data of them are presented in graphical form. Subsequently, the effect of the dual dynamic dampers to control the resonance peak is shown to be greater than that of a single dynamic damper. The effectiveness of the vibration isolator equipped with the dual dynamic dampers indicated by the theoretical analysis is demonstrated experimentally by using a compact variable-stiffness type dynamic damper with magnetic damping.

Journal

  • Bulletin of JSME

    Bulletin of JSME 24 (197), 2013-2019, 1981

    The Japan Society of Mechanical Engineers

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