Numerical and experimental study on hydrodynamic performance of a novel semi-submersible concept

Song Gao, Longbin Tao, Yu-feng Kou, Chao Lu, Jiang-long Sun

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The Multiple Column Platform (MCP) semi-submersible is a newly proposed concept, which differs from the conventional semi-submersibles, featuring centre column and middle pontoon. It is paramount to ensure its structural reliability and safe operation at sea, and a rigorous investigation is conducted to examine the hydrodynamic and structural performance for the novel structure concept. In this paper, the numerical and experimental studies on the hydrodynamic performance of MCP are performed. Numerical simulations are conducted in both the frequency and time domains based on 3D potential theory. The numerical models are validated by experimental measurements obtained from extensive sets of model tests under both regular wave and irregular wave conditions. Moreover, a comparative study on MCP and two conventional semi-submersibles are carried out using numerical simulation. Specifically, the hydrodynamic characteristics, including hydrodynamic coefficients, natural periods and motion response amplitude operators (RAOs), mooring line tension are fully examined. The present study proves the feasibility of the novel MCP and demonstrates the potential possibility of optimization in the future study.
LanguageEnglish
Pages144-156
Number of pages13
JournalChina Ocean Engineering
Volume32
Issue number2
DOIs
Publication statusPublished - 30 Apr 2018

Fingerprint

submersible
Semisubmersibles
experimental study
Hydrodynamics
hydrodynamics
Pontoons
semisubmersible platform
Mooring
Computer simulation
Numerical models
model test
simulation
comparative study

Keywords

  • multiple column platform (MCP)
  • semi-submersible platform
  • Numerical simulation
  • model test
  • response amplitude operators (RAOs)

Cite this

Gao, Song ; Tao, Longbin ; Kou, Yu-feng ; Lu, Chao ; Sun, Jiang-long. / Numerical and experimental study on hydrodynamic performance of a novel semi-submersible concept. In: China Ocean Engineering. 2018 ; Vol. 32, No. 2. pp. 144-156.
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Numerical and experimental study on hydrodynamic performance of a novel semi-submersible concept. / Gao, Song; Tao, Longbin; Kou, Yu-feng; Lu, Chao; Sun, Jiang-long.

In: China Ocean Engineering, Vol. 32, No. 2, 30.04.2018, p. 144-156.

Research output: Contribution to journalArticle

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