浮遊式海洋人工島の波浪及び海震に対する流体連成挙動の統一的扱いに関して

概要

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The purpose of this study is to provide a unified approach which predicts the dynamic behavior of a large-scaled circular floating island subjected to wind-waves and seaquakes, taking into account the dynamic interaction between a floating island and sea water. The floating island is modeled as an elastic circular plate. The hydrodynamic pressure generated on the bottom surface of the island subjected to wind-waves or seaquakes is obtained as closed form on the basis of a linear potential flow theory. The modal equations of motion are derived by energy method. In the formulation, the interaction between the island and sea water is estimated as the hydrodynamic added mass, hydrodynamic added damping and hydrodynamic added stiffness. The response quantities are calculated using a linear random vibration theory. Numerical examples are presented to discuss the dynamic behavior of a flexible floating island.
一般社団法人日本建築学会の論文
1991-03-15