Annular buoyant body
AssigneeIdeol
InventorThomas Choisnet
Life of this patent
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Abstract
The invention relates to the field of buoyant bodies, and more particularly to an annular buoyant body (1) including a central moonpool (2), configured such that, in water, with swell of a period substantially equal to a natural period of the buoyant body (1) while it is moving with heave motion, vertical forces exerted on the buoyant body (1) by a mass of water oscillating in the central moonpool (2) in phase opposition relative to the swell, compensate at least partially for the vertical excitation forces exerted on the buoyant body (1) by the swell. The invention also relates to a method of at least partially extinguishing heave motion of the buoyant body (1) at a natural period of the buoyant body (1).
Claims15
An annular buoyant body including a central moonpool, configured such that, in water, with swell of a period substantially equal to a natural period of the buoyant body while it is moving with heave motion, vertical forces exerted on the buoyant body by a mass of water oscillating in the central moonpool in phase opposition relative to the swell, compensate at least partially for the vertical excitation forces exerted on the buoyant body by the swell.
A method of at least partially extinguishing heave motion of a buoyant body that is floating in water subjected to swell of a period substantially equal to a heave natural period, wherein said buoyant body is provided with a central moonpool in which a mass of water oscillates in phase opposition relative to the swell, in order to exert on the buoyant body vertical forces that oppose vertical excitation forces exerted by the swell.
Dependencies are inferred from the claim text.