DYNAMIC RESPONSE OF A GRAVITY PLATFORM UNDER RANDOM WAVE FORCES.

被引：0
|
作者：
Nataraja, R.
Kirk, C.L.
机构：
来源：
Proceedings of the Annual Offshore Technology Conference | 1977年 / 3卷
关键词：
FOUNDATIONS - Underwater - Mathematical models - WATER WAVES - Spectrum Analysis;
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学科分类号：
摘要：
A spectral analysis of a typical multi-tower gravity platform is carried out considering soil-structure interaction. The modal frequency response function and the linear hydrodynamic load transfer functions are determined taking into account diffraction effects. The displacement and wave loading spectra are evaluated for sea states described by the JONSWAP wave height spectrum relevant to the North Sea environment. Considerable simplification is achieved by a reduced interaction model together with complex notation for wave forces. A detailed parametric study using various values of soil shear modulus yields r. m. s. values of deck displacement and tower elastic deformation.
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页码：199 / 208
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