粘弾性樹脂をコアとする三層積層板の振動減衰特性に及ぼす機械的振動条件の影響

概要

論文の詳細を見る
Loss factors of three-layered composite beams, in general, have been considered to be determined uniquely by the frequency from material conditions such as viscoelastic properties of core resin and configuration of each layer. Mead et al. , however, by theoretical analysis of a three-layered composite beam, revealed that its loss factor is determined not only from material conditions but also from vibration mode. In order to verify the above phenomenon and to clarify the influence of vibration mode and beam supporting conditions, measurement of the transfer function of a three-layered composite beam excited at its center is conducted. Numerical calculation based on Mead theory is also performed. The results show that the vibration mode varies the loss factor corresponding to the specified frequency.
一般社団法人日本機械学会の論文
1995-05-25