NDLI: Numerical and experimental analysis of hydroelastic response on a very large floating structure edged with a pair of submerged horizontal plates

Content Provider	Springer Nature Link
Author	Cheng, Yong Zhai, Gangjun Ou, Jinping
Copyright Year	2014
Abstract	This paper aims to investigate the hydroelastic response of the very large floating structure (VLFS) with the perforated, non-perforated or the dual submerged horizontal plates both numerically and experimentally. A modal expansion approach is applied to the fluid–structure interaction problem in the frequency domain. The boundary element method solutions based on Kelvin sources are used for the hydrodynamic diffraction and radiation forces, in which the viscous effect of the perforated anti-motion plate is taken into consideration through the Darcy’s law. As a comparison of the data between calculations and experiments, the relationship between the porosity and the porous parameter is developed using the least-squares fitting scheme. The effectiveness of the attached non-perforated and perforated plates in reducing the motion of the VLFS is systematically assessed for various wave and anti-motion plate parameters, such as plate width, porosity and submergence depth. After simulation and verification, we propose a simple anti-motion device, which is the perforated-impermeable-plate combination attached to the fore-end and back-end of the VLFS. The performance of this anti-motion device has been confirmed as an optimal design. Considering variation of the water depths in offshore, discussion on the hydroelastic response of the VLFS with these anti-motion devices at different water depths is highlighted.
Starting Page	127
Ending Page	141
Page Count	15
File Format	PDF
ISSN	09484280
Journal	Journal of Marine Science and Technology
Volume Number	20
Issue Number	1
e-ISSN	14378213
Language	English
Publisher	Springer Japan
Publisher Date	2014-04-26
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	VLFS Anti-motion device Hydroelastic problems Perforate plate Submerged horizontal plate Automotive Engineering Engineering Fluid Dynamics Engineering Design Offshore Engineering Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Oceanography Ocean Engineering Mechanics of Materials Mechanical Engineering

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