| 摘要 |
PCT No. PCT/US96/04997 Sec. 371 Date Nov. 14, 1997 Sec. 102(e) Date Nov. 14, 1997 PCT Filed Apr. 11, 1996 PCT Pub. No. WO96/33089 PCT Pub. Date Oct. 24, 1996A new type of mooring arrangement is invented by providing conventional catenary spread mooring systems, taut leg spread mooring systems and tension leg platform mooring systems with additional branch lines (2-2; 3-3) and branch connections (2, 3). Branch lines and connections similar to (2-2) and (3-3) under this invention typically have ends connected to different legs (B-A) of mooring systems, as schematically depicted in FIG. 4. They can also have one end connected to leg (B-A) and the other end connected to other structural elements. Such connections can also join points of the same leg (B-A). The branch lines and connections can be used to modify technical characteristics of the invented mooring arrangement and to modify global and local loads in comparison with those in conventional systems. By novel, optimal arrangements of branch connections this invention allows to enhance the functionality of mooring systems and makes them more cost effective at increased water depths. This invention makes it feasible to significantly reduce total foot prints of mooring systems and reduce total weight of mooring components used in those systems.
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