Mooring line tensioning and damping system

Details Mooring line tensioning and damping system Mooring line tensioning and damping system

1989-05-23

1990-06-26

Taylor, Dennis L.

Hydraulic and earth engineering

Marine structure or fabrication thereof

With anchoring of structure to marine floor

114265, 405204, E02B 1700

Patent

active

049367102

ABSTRACT:
The floating structure comprises one or more catenary mooring cables for anchoring the structure to the seabed. An extensible dynamic tensioner system is provided for maintaining a predetermined dynamic tension in each mooring cable, as the structure responds to cyclic wave forces, and for increasing the natural periods of oscillation of the pitch, roll, heave, surge, sway, and yaw motions of the moored floating structure by reducing the spring stiffness of the mooring system. A motion damping system is coupled between the dynamic tensioner system and the structure for damping the linear and angular displacements of the structure relative to the tensioned cables. The damping system selectively applies frictional forces against a movable member in the tensioner system. The movable member does not move relative to the cables.

REFERENCES:
patent: 2986889 (1961-06-01), Ludwig
patent: 3996755 (1976-12-01), Kalinowski
patent: 4425056 (1984-01-01), Hunter
patent: 4657438 (1987-04-01), Gillis

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