はく離を有する粘弾性積層はりの損失係数 : 中立面解析による複素曲げ剛性を用いた評価法

概要

論文の詳細を見る
This paper deals with the damping properties of a viscoelastic three-layered cantilever with partial delamination in the damping material. In the analysis, first, the flexural rigidity of a three-layered cantilever without delamination is calculated by means of the neutral plane method in the previous paper. Next, the flexural rigidity of the three-layered cantilever with delamination corresponding to the fundamental mode of vibration is determined by measuring the static deflections. Finally, these values are used to evaluate the complex flexural rigidity corresponding to arbitrary normal mode, and the loss factor for each normal mode is obtained. As a result, it is clarified that delamination makes the magnitude of the loss factor considerably larger than in the case of no delamination. Comparison of the theoretical results of loss factors with the experimental values shows that this analytical method has higher accuracy than the previous method.
社団法人日本機械学会の論文
1995-09-25