The paper presents an experimental and numerical investigation on the motions of a floating body of simple geometry subjected to harmonic and biharmonic waves. The experiments were carried out in three different water depths representing shallow and deep water. The body is axisymmetric about the vertical axis, like a vertical cylinder with a rounded bottom, and it is kept in place with a soft mooring system. The experimental results include the first order motion responses, the steady drift motion offset in regular waves and the slowly varying motions due to second order interaction in biharmonic waves. The hydrodynamic problem is solved numerically with a second order boundary element method. The results show a good agreement of the numerical calculations with the experiments.
Analysis of the First Order and Slowly Varying Motions of an Axisymmetric Floating Body in Bichromatic Waves
Contributed by the Ocean Offshore and Arctic Engineering Division of ASME for publication in the JOURNALOF OFFSHORE MECHANICSAND ARCTIC ENGINEERING. Manuscript received August 4, 2010; final manuscript received May 8, 2012; published online February 22, 2013. Assoc. Editor: Arvid Naess.
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Pessoa, J., Fonseca, N., and Soares, C. G. (February 22, 2013). "Analysis of the First Order and Slowly Varying Motions of an Axisymmetric Floating Body in Bichromatic Waves." ASME. J. Offshore Mech. Arct. Eng. February 2013; 135(1): 011601. https://doi.org/10.1115/1.4007045
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