613 モーダルパラメータに基づく,統計的エネルギー解析法における結合損失係数の推定手法に関する研究(GS10 先端の解析技術・信号処理技術,研究討論セッション)

抄録

This study describes the method to identify coupling loss factor (CLF) for statistical energy analysis (SEA) by using the modal parameter of structures. It is well known that CLF is influenced by structure shape and damping; however, only connection length, thickness and area can be taken into account in the conventional theoretical formula. In this paper, therefore, the revised theoretical formula for CLF estimation based on structural modal parameters is proposed to further consider additional structural features in the simulation. The proposed method is subsequently validated using FEM simulation, which showed its effectiveness and significance over the conventional method.