Optimization Design of Equivalent Water Depth Truncated Mooring System Based on Chaos Algorithm

In order to replace full-depth system to perform the hybrid model testing,the equivalent water depth truncated system is designed.Considering the similarity of static characteristics of total mooring system and the representative of the single root mooring ropes between the truncated mooring system and full-depth mooring system,the improved mutative Scalechaos algorithm is employed to the optimization of the equivalent water depth truncated mooring system.Based on a spar platform operated in 1,500m water depth,optimal design is exercised for its truncated mooring system in 700m water depth.The numerical experimentation result indicated that the design of the truncated mooring system is reasonable and reliable.