Numerical study on a hybrid mooring system with clump weights and buoys

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

A new hybrid mooring system based on the traditional taut mooring lines was proposed in the present study. A series of clump weights were attached to the lower end of each mooring line to form a catenary shape. Some buoys were connected to the upper ends of the lines to reduce the top tension on each mooring line. In order to verify the advantages of this new hybrid system, we investigated the motion responses of a semi-submersible platform moored by the proposed hybrid mooring system. The top tension on the lines was also calculated by using the time domain method. Comparing the results from the taut mooring system, it can be found that the tension on the lines could be reduced by using the present hybrid mooring system, while the motion responses were hardly influenced. Furthermore, a catenary shape was formed at the lower end of each mooring line, which could reduce the requirement of the anti-uplift capacity of the anchors. We also carried out the parametric study to investigate the optimal position and volume of the buoys. The discussions were highlighted on the influence of the water depth.
LanguageEnglish
Pages1-11
Number of pages12
JournalOcean Engineering
Volume88
Early online date1 Jul 2014
DOIs
Publication statusPublished - 15 Sep 2014

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Buoys
Mooring
Semisubmersibles
Anchors
Hybrid systems

Keywords

  • coupled analysis
  • time domain
  • hybrid mooring system
  • clump weights
  • buoys

Cite this

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title = "Numerical study on a hybrid mooring system with clump weights and buoys",
abstract = "A new hybrid mooring system based on the traditional taut mooring lines was proposed in the present study. A series of clump weights were attached to the lower end of each mooring line to form a catenary shape. Some buoys were connected to the upper ends of the lines to reduce the top tension on each mooring line. In order to verify the advantages of this new hybrid system, we investigated the motion responses of a semi-submersible platform moored by the proposed hybrid mooring system. The top tension on the lines was also calculated by using the time domain method. Comparing the results from the taut mooring system, it can be found that the tension on the lines could be reduced by using the present hybrid mooring system, while the motion responses were hardly influenced. Furthermore, a catenary shape was formed at the lower end of each mooring line, which could reduce the requirement of the anti-uplift capacity of the anchors. We also carried out the parametric study to investigate the optimal position and volume of the buoys. The discussions were highlighted on the influence of the water depth.",
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author = "Zhi-Ming Yuan and Atilla Incecik and Chunyan Ji",
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journal = "Ocean Engineering",
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Numerical study on a hybrid mooring system with clump weights and buoys. / Yuan, Zhi-Ming; Incecik, Atilla; Ji, Chunyan.

In: Ocean Engineering, Vol. 88, 15.09.2014, p. 1-11.

Research output: Contribution to journalArticle

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AU - Incecik, Atilla

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