Response Analysis of Offshore Structures
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 109, Issue 4
Abstract
A method is suggested for finding the dynamic displacement response of a four legged offshore tower under the action of waves. The structure is idealized as a single degree of freedom vibrator and generalized co‐ordinate system is chosen for assessing the tower properties for which a suitable sinusoidal shape function is assumed. Morison's equation is used to represent the forcing function arid Airy's linear theory to describe the flow‐characteristics. A Fourier analysis of the generalized load is made and the response of the system computed as the linear combination of its responses to the individual Fourier components. An experimental investigation has been conducted and the results obtained have been compared with the predictions of the present theory and another theory suggested by Harleman and others. The present theory is seen to yield results that compare better with the experimental ones.
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References
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 109 • Issue 4 • November 1983
Pages: 363 - 379
Copyright
Copyright © 1983 ASCE.
History
Published online: Nov 1, 1983
Published in print: Nov 1983
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