SINGLE SHARED ANCHOR MOORING SYSTEMS AND INSTALLATION METHOD FOR FLOATING OFFSHORE WIND TURBINES

Abstract: two types of single shared anchor mooring systems and installation method for station-keeping of floating offshore wind turbines are disclosed. the first type has one anchor on the seabed, a plurality of mooring lines, three-dimensional fairlead devices, and pendent gravity units. each of the mooring lines runs from a first end attached to the corresponding pendent gravity unit suspended in mid-water vertically upward through the corresponding three-dimensional fairlead device attached to the floater and extends downward to a second end attached to the anchor. the mooring line has a constant tension equal to the submerged weight of the pendent gravity unit. the second type has one anchor on the seabed, one pendent gravity unit suspended in mid-water above the anchor, a plurality of mooring fairleads and interconnected mooring lines. each of the mooring lines runs upward from a first end connected to the anchor through the mooring fairlead attached to the floater and extends downward to a second end connected to the pendent gravity unit. the mooring systems are secured to the floater at quayside, towed-out with the floater, and installed by lowering the anchor and the pendent gravity units under gravity at the offshore site.

Inventor(s): JIN WANG

CPC Classification: B63B21/50 (SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING (arrangements of vessel ventilation, heating, cooling, or air-conditioning ; floating substructures as supports of dredgers or soil-shifting machines ))

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