Nonlinear effects for ship motion in heavy seas

Article type: Research Article

Authors: Yamamoto, Y.^a | Fukasawa, T.^b | Arai, M.^c | Kajita, E.^c

Affiliations: [a] Department of Naval Architecture, University of Tokyo, Japan | [b] Institute of Structural Engineering, University of Tsukuba, Japan | [c] Ship Strength Department, Research Institute, Ishikawajima-Harima Heavy Industries Co., Ltd., Japan

Abstract: A number of ship disasters took place in succession during the past several years in the North Pacific Ocean, and investigations of ship’s responses among high waves have been done in order to clarify the mechanism of the disasters. The first two authors of the present paper and Fujino proposed a theory for determining behaviors of a ship among rough seas, taking account of impact forces due to slamming, and the special version of the theory can be used for determining rigid-body motions. Series of experiments are conducted with a model for a fast container ship of fine hull form with prominent bow-flare; the results obtained are in good accordance with the nonlinear theory even in case of slamming.

DOI: 10.3233/ISP-1982-2933301

Journal: International Shipbuilding Progress, vol. 29, no. 333, pp. 118-124, 1982