The paper considers the surge-motion of a simplified dynamic system representing a FPSO exposed to wind load. The Ochi and Shin wind gust spectrum, [12], is used together with two sea surface roughness formulas: the wave age independent Charnock formula, [4], that is frequently used, and the wave age dependent Volkov formula, [16]. An example of results demonstrates the effect of the sea surface roughness on the dynamic wind response of the system.

Volume Subject Area:
Offshore Technology
Keywords:
Ocean wind generated waves, Wind gust spectrum, Sea surface roughness, Dynamic response
Topics:
Seas, Surface roughness, Wind
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