632 低周波大型構造物用動吸振器に関する研究(動吸振器2)(OS.10 : ダンピング)

概要

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A new-type of the dynamic vibration absorber for large-scale structures with very low frequencies is proposed. It utilizes the rotational moment of inertia of bar-type mass instead of the conventional concept of utilizing the inertia force of the mass of the auxiliary vibrational system. The optimal tuning and damping conditions of the proposed dynamic vibration absorber are derived by the Fixed Point Theory. Then, this design concept is applied to the first mode with frequency O.lHz of the three-degree-of-freedom system, and the superiority of the proposed vibration absorber in low frequency range is verified. Finally, a prototype of the proposed device was manufactured and the experiments of the free vibration and the frequency response were conducted, and the validity of the theory was ascertained.
一般社団法人日本機械学会の論文
2001-08-03