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RESEARCH PAPERS: Offshore Mechanics

Finite Depth and Tank Wall Effects Upon First and Second-Order Forces

[+] Author and Article Information
G. E. Hearn, S. Y. Liou

Hydromechanics Research Group, Department of Marine Technology, University of Newcastle Upon Tyne, Newcastle Upon Tyne, U.K.

J. Offshore Mech. Arct. Eng 113(4), 297-305 (Nov 01, 1991) (9 pages) doi:10.1115/1.2919934 History: Received July 24, 1990; Revised March 19, 1991

Abstract

This paper presents a hybrid method of solution of the radiation and diffraction fluid-structure interaction problems based upon Rankine source distributions and eigenfunction expansion matching techniques. Using direct pressure integration of the first-order solutions, the second-order drift forces are calculated in “open” water and “confined” water situations with and without forward speed effects included. The method has been developed to provide an alternative way of calculating low-frequency damping coefficients.

Copyright © 1991 by The American Society of Mechanical Engineers
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