Abstract
The object of this paper is to study the wave pressure distribution experimentaly on the interaction between the elastic cylindrical shell structure and water wave. Four types of cylindrical shell are selected as the model of fixed-type elastic offshore structure with the great increase of interest in recent year. Our experiments are performed in two kinds of tank. They are small tank for a preliminary use and the large one with a flutter-type wave generator. Under the incident waves of small amplitude motion generated by the wave generator, the dynamic pressure distributions, displacements and strains on shell wall are measured. Especially, the measured values of dynamic wave pressure are compared with MacCamy and Fuchs theory which was derived on the riged cylindrical structure using the diffraction theory. Through this comparison, we pointed out that the motion of shell which is caused by the characteristics of incident waves have an influence to wave pressure distribution.
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