Optimal design of equivalent water depth truncated mooring system based on baton pattern simulated annealing algorithm

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• 作者：Huo-ming Zhang (1)
  Sai-hua Huang (2)
  Wei-bing Guan (3)
  
• 关键词：hybrid model testing ; deep sea platforms ; equivalent water depth truncation ; FPSO ; optimization design ; baton optimization approach
• 刊名：China Ocean Engineering
• 出版年：2014
• 出版时间：March 2014
• 年：2014
• 卷：28
• 期：1
• 页码：67-80
• 全文大小：563 KB
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• 作者单位：Huo-ming Zhang (1)
  Sai-hua Huang (2)
  Wei-bing Guan (3)
  
  1. College of Metrology Technology and Engineering, China Jiliang University, Hangzhou, 310018, China
  2. Department of Ocean Science and Engineering, Zhejiang University, Hangzhou, 310058, China
  3. The Second Institute of Oceanography, China State Oceanic Administration, Hangzhou, 310012, China
  

文摘

The highest similarity degree of static characteristics including both horizontal and vertical restoring force-displacement characteristics of total mooring system, as well as the tension-displacement characteristics of the representative single mooring line between the truncated and full depth system are obtained by annealing simulation algorithm for hybrid discrete variables (ASFHDV, in short). A “baton-optimization approach is proposed by utilizing ASFHDV. After each baton of optimization, if a few dimensional variables reach the upper or lower limit, the boundary of certain dimensional variables shall be expanded. In consideration of the experimental requirements, the length of the upper mooring line should not be smaller than 8 m, and the diameter of the anchor chain on the bottom should be larger than 0.03 m. A 100000 t turret mooring FPSO in the water depth of 304 m, with the truncated water depth being 76 m, is taken as an example of equivalent water depth truncated mooring system optimal design and calculation, and is performed to obtain the conformation parameters of the truncated mooring system. The numerical results indicate that the present truncated mooring system design is successful and effective.