FIELD: oil and gas industry.
SUBSTANCE: offshore platform with the system of oscillations attenuation, caused by the vortex formation (VIV), contains a variety of side plates disposed tangentialy, having the open space from both sides across the water flow. The side plates causes the separation of the water around the plates by transverse motion of VIV platform, caused by the flow moving against the platform, and tangential side plates resist to the VIV platform movement from the flow. The side plates can be disposed tangentially around the periphery of the open truss structure below the spar-type platform. Also the tangential side plates may be disposed tangentially, away from the housing periphery, forming the gap with the open space between the plates and the housing.
EFFECT: possibility of oscillations attenuating, caused by the vortex formation.
15 cl, 18 dwg
