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Prediction of extremes of combined first-order and slow-drift motions of offshore structures
Abstract In this paper particular emphasis has been given to the problem of estimating the extreme values of the combined first-order and slow-drift response of an offshore structure, subjected to a stationary irregular sea-way. From the study of specific examples, it is concluded that a strong coupling between extreme first-order and slow-drift responses must be expected. Based on linearized equations of motion, it is shown that a commonly used formula for combining extreme value estimates may lead to significant underprediction. A simplified procedure for obtaining an estimate of extreme slow-drift response is also described.
Prediction of extremes of combined first-order and slow-drift motions of offshore structures
Abstract In this paper particular emphasis has been given to the problem of estimating the extreme values of the combined first-order and slow-drift response of an offshore structure, subjected to a stationary irregular sea-way. From the study of specific examples, it is concluded that a strong coupling between extreme first-order and slow-drift responses must be expected. Based on linearized equations of motion, it is shown that a commonly used formula for combining extreme value estimates may lead to significant underprediction. A simplified procedure for obtaining an estimate of extreme slow-drift response is also described.
Prediction of extremes of combined first-order and slow-drift motions of offshore structures
Naess, Arvid (Autor:in)
Applied Ocean Research ; 11 ; 100-110
01.01.1989
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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