425 減衰の係数励振を用いた動吸振器を設置した構造物の周波数応答解析 [in Japanese] 425 Frequency response analysis of structure by attaching a dynamic absorber using parametric excitation of damping [in Japanese]
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This paper proposes a new method for utilization of variable damping in a vibration system. The coefficient of variable damping can be changed as that in the case of a sine wave, i.e. parametric excitation whose frequency can be arbitrarily selected. As a results of the parametric excitation, the vibration amplitude of the system increases because of the resonance at arbitrary frequency of the external input. We have confirmed the resonance of the damping parametric excitation by simulation and experiment. In this paper, we propose a method of frequency response analysis of the vibration system with the parametric excitation of damping coefficient and the external harmonic excitation. Finally, we consider about the SDOF vibration model with the external input that includes two frequency contents, and we propose a new vibration control method that the outputs interfere with each other by the parametric excitation.
- The Proceedings of the Dynamics & Design Conference
The Proceedings of the Dynamics & Design Conference 2008(0), _425-1_-_425-6_, 2008
The Japan Society of Mechanical Engineers