アルミニウムハニカム構造板のパラメータ同定と振動減衰特性 : 第1報,異方性Timoshenkoはりモデルによる検討

概要

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The damping property of aluminum honeycomb sandwich panels is discussed. Aluminum honeycomb sandwich panels are treated as orthotropic materials and parameter identification is performed based on Timoshenko's beam theory in this paper. Each parameter in the beam model is determined step by step. Namely, at first, the density is obtained by measurement of the dimensions and weights of test pieces, and the elastic constants are calculated from both experimental and analytical natural frequencies. Moreover, the modal damping ratios are determined from the acceleration for impact excitation tests. The calculated results are compared with experimental ones and the validity is confirmed. It is demonstrated that the aluminum honeycomb sandwich panel has excellent damping characteristics.
社団法人日本機械学会の論文
1995-03-25