Affiliation:
1. Assistant Professor Department of Maritime Systems Engineering, Division of Marine Technology, Tokyo University of Marine Science and Technology, Tokyo, Japan e-mail:
2. e-mail:
3. e-mail: Department of Oceanic Architecture and Engineering, CST, Nihon University Chiyoda, Japan
4. Japan Transport Safety Board
Tokyo, Japan e-mail:
Abstract
In recent years, a number of floating facilities for the utilization of ocean space, such as a marine disaster prevention base, floating restaurant, or floating container terminal, are planned, and some of them are actually built. Most of these facilities are of the pontoon-type floating structure, and the mooring system is basically a mooring dolphin. In the design of such facilities, it is important that the prediction of the motions of a pontoon-type floating body, supported by a mooring dolphin, in a tsunami is obtained. The objective of the present research is to develop a simulation system to obtain such predictions. In the present simulation system developed here, the three-dimensional (3D) MPS method (moving particle semi-implicit method) is used, and a solitary wave and borelike wave are applied to represent the incoming tsunami wave. The present paper is a report of the first stage of the research, and the heaving motion of the floating body acted upon by the tsunami is paid special attention, and we also report on the results of the study of the detaching of the floating body from the mooring dolphin.
Subject
Mechanical Engineering,Ocean Engineering
Reference5 articles.
1. Masuda, K., Masuda, M., and Ikoma, T., 2010, “Study on Collision Forces on Water-Front Facilities Induced by Floating Vessels Washed Onto Apron by Tsunami,” Proc. of OMAE’10, ASME, Paper No. OMAE2010-20501.10.1115/OMAE2010-20501
2. On the Impact of the Generation of Large Scale Tsunami on Anchored Vessels,2004
3. Uchida, M., Masuda, K., Ikoma, T., and Maeda, H., 2006, “Research on the Response of Floating Structures to Tsunami in the Vicinity of the Quay Side,” Lecture Meeting of The Japan Society of Naval Architects and Ocean Engineers, No. 2E, pp. 87–88.
4. Moving-Particle Semi-Implicit Method for Fragmentation of Incompressible Fluid;Nucl. Sci. Eng.,1996
5. Masuda, M., Ikoma, T., Masuda, K., and Maeda, H., 2008, “A Study on Predictions of Fully Nonlinear Motion Aircushion Type Floating Structures Using 2D MPS Method,” Proc. of OMAE'08, ASME, Paper No. OMAE2008-57387.10.1115/OMAE2008-57387
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