Analysis of Forced Vibration by Reduced Impedance Method : Part. 3 Damped Vibration

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概要

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• Two methods are proposed to analyze the damped vibration of mechanical structures by a reduced impedance methods (RIM), when a modal damping ratio or a frequency spectrum of the damping coefficient is given. First, modal damping ratios of some simple specimens are obtained experimentally by the technique of curve fitting the authors proposed. Next, the frequency spectra of response of the damped vibration are analyzed by the real RIM with the modal damping ratios. The same kind of analysis is performed by the complex RIM. Both of the analytical results by the above two methods agree well with the experimental ones. It is clear that the present two analytical methods by RIM is especially useful for predicting peak value of response curve at resonant frequency of the forced vibration.

• 一般社団法人日本機械学会の論文

著者

• Nagamatsu Akio

  Faculty Of Engineering Tokyo Institute Of Technology

• Nagamatsu Akio

  Faculty O F Engineering Tokyo Institute Of Technology

• NAKAO Akihiro

  SUMITOMO METAL Co.Ltd.

• Nakao Akihiro

  Sumitomo Metal Co. Ltd.

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