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ポンツーン型浮体の波浪中弾性応答解析へのHamilton-Dirichlet原理の適用 : 第1報:矩形平板浮体への適用

発表形態:
原著論文
主要業績:
単著・共著:
発表年月:
2007年12月
DOI:
会議属性:
査読:
リンク情報:

日本語フィールド

著者:
新里 英幸;永田 修一;豊田 和隆;島崎 克教
題名:
ポンツーン型浮体の波浪中弾性応答解析へのHamilton-Dirichlet原理の適用 : 第1報:矩形平板浮体への適用
発表情報:
日本船舶海洋工学会論文集 号: 6 ページ: 257265
キーワード:
概要:
Many analytical methods have been proposed to calculate hydroelastic responses of a very large pontoon type structure in waves. In relation to the elastic response of such pontoon type structure in waves, Isshiki and Nagata proposed four kinds of variational principles related to motions of the elastic plate floating on a water surface and clarified the mutual relationship of these variational principles. "Modified Hamilton-Dirichlet's Principle 2" which is expressed using the velocity potential is one of four kinds of variational principles and has expressed the motions of the fluid and plate. In this paper, in order to calculate the wave-induced responses of an elastic floating plate in waves, a new method is proposed which uses the "Modified Hamilton-Dirichlet's Principle 2" and the "eigenfunction expansion method for fluid motion". The velocity potentials in regions with and without the plate are expanded by eigenfunctions in vertical mode which satisfy the governing equations and free-surface conditions, taking into account the presence of the plate in the same manner as Kim and Ertekin. In this method, "Modified Hamilton-Dirichlet's Principle 2" is finally reduced to a variational equation which corresponds to boundary conditions on the plate's edge and is applicable to the plate with arbitrary horizontal shape. This proposed method has the expression which can be applied to the floating plate with arbitrary horizontal shape. However, in this paper, as a 1st step, the calculated results of two kinds of rectangular horizontal plates are compared with the experimental results
抄録:

英語フィールド

Author:
Niizato Hideyuki;Nagata Shuichi;Toyota Kazutaka;Shimazaki Katsunori
Title:
Application of Hamilton-Dirichlet's Principle to Analysis of Wave-induced Responses of an Elastic Floating Plate
Announcement information:
Journal of the Japan Society of Naval Architects and Ocean Engineers Issue: 6 Page: 257265
An abstract:
Many analytical methods have been proposed to calculate hydroelastic responses of a very large pontoon type structure in waves. In relation to the elastic response of such pontoon type structure in waves, Isshiki and Nagata proposed four kinds of variational principles related to motions of the elastic plate floating on a water surface and clarified the mutual relationship of these variational principles. "Modified Hamilton-Dirichlet's Principle 2" which is expressed using the velocity potential is one of four kinds of variational principles and has expressed the motions of the fluid and plate. In this paper, in order to calculate the wave-induced responses of an elastic floating plate in waves, a new method is proposed which uses the "Modified Hamilton-Dirichlet's Principle 2" and the "eigenfunction expansion method for fluid motion". The velocity potentials in regions with and without the plate are expanded by eigenfunctions in vertical mode which satisfy the governing equations and free-surface conditions, taking into account the presence of the plate in the same manner as Kim and Ertekin. In this method, "Modified Hamilton-Dirichlet's Principle 2" is finally reduced to a variational equation which corresponds to boundary conditions on the plate's edge and is applicable to the plate with arbitrary horizontal shape. This proposed method has the expression which can be applied to the floating plate with arbitrary horizontal shape. However, in this paper, as a 1st step, the calculated results of two kinds of rectangular horizontal plates are compared with the experimental results


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