Single point mooring with suspension turret
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United States of America Patent
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-
Mar 23, 2004
Grant Date -
Aug 21, 2003
app pub date -
Feb 19, 2003
filing date -
Feb 19, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An arrangement for suspending a Single Point Mooring Turret from its corresponding vessel, by transmitting a circumferentially uniform axial vertical load without moment through the interface of motion between the vessel and turret, by decoupling mooring system loads, inertial loads and hull deflection induced loads, from transmission across that interface. The arrangement supports the turret through a pendular suspension system which includes bogies, having one or more wheels or rollers per bogie, which roll around the circumference of the moonpool on a rail to allow the bogies to rotate in a horizontal plane which is perpendicular to the center line of the moonpool, and to decouple the bearing loads from radial hull deflection due to ovaling caused by rough seas. Radial flexure is achieved by suspending the turret from the bogie through rocker arms and chains, cables, rods or columns between the bogies and a riser support structure of the turret.
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