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Indexed by:期刊论文

Date of Publication:2011-02-01

Journal:JOURNAL OF HYDRODYNAMICS

Included Journals:SCIE、EI、CSCD

Volume:23

Issue:1

Page Number:81-88

ISSN No.:1001-6058

Key Words:spectral analysis; wave uplift force; spectral moment

Abstract:This article presents a spectral analysis of wave uplift loads on a horizontal deck. The wave uplift force spectrum on the underside of the deck is obtained. It is shown that the wave uplift force spectral density decreases with the increase of the relative clearance Delta h/H-1/3. The influences of different incident wave parameters, including the relative wave height H-1/3/d, the relative deck width B/L-s and the relative clearance Delta h/H-1/3 on the dimensionless zeroth spectral moment of the uplift forces are discussed. It is found that the zeroth spectral moment of the uplift forces increases with the increase of the relative wave height H-1/3/d, and decreases with the increase of the relative clearance Delta h/H-1/3. A new dimensionless prediction model for the zeroth spectral moment of wave uplift loads on the deck is proposed and the relationship between the wave uplift forces and the zeroth spectral moment of the uplift force are obtained.