波浪中の浮体の運動に関するHamilton-KelvinおよびHamilton-Dirichletの原理

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The estimation of motions of a floating body in waves is one of the most important problems to assure the safety of ships and various marine structures, and much study has been done using various methods. This paper discusses this problem from the viewpoint of the Hamilton principles in mechanics. In case of a steady irrotational flow of an incomplessible and invicid fluid, there exist variational principles called as the Kelvin and Dirichlet principles. The existence of the similar principles can be shown for water wave problems. In this paper, not only the fluid motion but also the motion and elastic deformation of a floating body are covered within the variational principles, and mechanical system consisting of a floating body and a fluid is discussed in a unified manner.
社団法人日本船舶海洋工学会の論文
1978-06-30