| 摘要 |
A mooring apparatus for mooring first and second vessels, ( 1, 7 ) together in a heavy seaway ofFshore is described. The apparatus is for tandem mooring using soft yoke technology. The apparatus consists of a rigid arm ( 2 ) with a longitudinal axis and first and second ends. The arm is mountable to a first vessel ( 1 ) so that its longitudinal axis is substantially parallel to that of the vessel ( 1 ) and is rotatable about a substantially horizontal axis ( 3 ) which is substantially perpendicular to the longitudinal axis and is located between the first and second ends. A tension member ( 4 ) is pivotally mounted to the second end of the arm ( 2 ) and can be connected to the second vessel ( 7 ). A ballast weight ( 8 ) is moveably mounted on the arm ( 2 ) and can be moved longitudinally along the arm by a drive means ( 9 ). Actuation means ( 10, 11, 12 ) is pivotally mounted to the first end of the arm ( 2 ) and controls rotation of the arm ( 2 ) about the pivot axis ( 3 ) Provision of the moveable ballast weight ( 8 ) allows the second vessel ( 7 ) to be connected to the apparatus with relatively small connecting loads. However, once connected the ballast weight ( 8 ) prevents the yoke masses being excited due to motions of the second vessel ( 7 ).
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