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Title: Inundation effect of wave forces on jack-up platforms
Authors: Liaw, C.Y. 
Zheng, X.Y. 
Keywords: Inundation effect
Jack-up platform
Least squares approximation
Nonlinear wave spectral analysis
Volterra series
Issue Date: Jun-2001
Citation: Liaw, C.Y.,Zheng, X.Y. (2001-06). Inundation effect of wave forces on jack-up platforms. International Journal of Offshore and Polar Engineering 11 (2) : 87-92. ScholarBank@NUS Repository.
Abstract: This paper aims to study the importance of the wave inundation effect. A concentrated force acting at the mean water level of the platform leg is used to represent the inundation effect due to variable wave surface. Its effects on the total and maximum wave forces are investigated based on structural modal analysis and linear wave assumptions. After the inundation drag force is approximated as an asymmetric second-order term, the corresponding frequency-domain transfer functions of Volterra/Wiener representation are derived. The auto-spectra of the deck displacement of 2 typical jack-up platforms are numerically evaluated to show the significant contribution of the inundation effect to the structural dynamic responses.
Source Title: International Journal of Offshore and Polar Engineering
ISSN: 10535381
Appears in Collections:Staff Publications

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