Hydrodynamic interaction of waves with a large displacement floating body
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Authors
Garrison, C. J. (Clarence Jimmy)
Subjects
dynamic response
mooring
wave forces
added mass - floating bodies
mooring
wave forces
added mass - floating bodies
Advisors
Date of Issue
1977-09
Date
1977-09
Publisher
Monterey, California. Naval Postgraduate School
Language
eng
Abstract
This report describes the analytical method and numerical procedure for the calculation of the wave pressure distribution and resulting induced forces and moments acting on large displacement bodies in the sea. The added mass and damping coefficients for the structure oscillating in all six degrees of freedom is computed. Then, the hydrodynamic coefficients associated with both the wave/structure interaction and the oscillation of the structure are determined by use of a Green's function method using quadralateral elements of constant source strength which applies to large structures of rather general shape. The analysis is based on linear theory and viscous effects are neglected on the basis that the size of the structure is large in relation to the amplitude of the incident wave. Also, the equations of motion for a free-floating body are developed which yields the dynamic response of a floating body with linear mooring line forces. Finally, the computer program capable of carrying out the numerical calculations is outlined and the input/output is discussed in some detail. (Author)
Type
Technical Report
Description
Series/Report No
Department
Organization
Operations Research (OR)
Graduate School of Operational and Information Sciences (GSOIS)
Identifiers
NPS Report Number
NPS-69Gm77091
Sponsors
supported by the Energy Research and
Development Administration, OTEC Program, Washington, D.C.
Funder
Format
Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.