| 摘要 |
A mooring system for a spar-type substructure 200, comprising means to create a restoring couple, by adjusting the vertical position a, b and c, at which a mooring force takes effect on the substructure. A mooring line 204 may be connected to the substructure by a bridle 203, having upper 205 and lower 206 elements, attached to the substructure, with means to adjust the relative lengths of the elements, thereby varying the effective mooring position. The elements of the bridle may pass through fairleaders 207 and 208, which may alter the relative lengths of the elements, through vertical movement or rotation (Fig 4). The mooring line may be connected to the bridle, by means of a ratchet type chain stopper (216, Fig 5), arranged to adjust the pretension in the mooring line, with respect to the substructure. |
