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The motion performance and mooring system of deepwater semi-submersible drilling unit

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Title:
The motion performance and mooring system of deepwater semi-submersible drilling unit
Author(s):
FENG Heng*;  SUN Chun-mei;  CHEN Zheng-wei and HONG Xue-fu
Affilations:
Author(s):
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Keywords:
deepwater semi-submersible drilling unit;  motion response;  response amplitude operators (RAO);  mooring system
分类号:
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DOI:
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Abstract:
This paper analyzes the motion performance and mooring system of deepwater semi-submersible drilling unit in the district of the South China Sea using the MOSES procedure system. After the 3-D panel model of the unit was built, the 3-D diffraction-radiation theory was used to obtain the hydrodynamic loads on the wet surfaces and the response amplitude operators (RAO) of the unit. According to the environmental data, the short-term motion response to motion performance of the unit is predicted by the spectral method. Then a time-domain calculation was done to analyze the motion of the unit with its mooring system. The research results can be a reference for the model test of unit.

References:

[1] SUBRATA K C. Handbook of offshore engineering[M]. Amsterdam: Elsevier Ocean Engineering Series, 2005.
[2] NIE Wu, LIU Yuqiu. Dynamic analysis of offshore structures[M]. Harbin: Harbin Engineering University Press, 2002.
[3] JOURNEE J M J, MASSIE W W. Offshore hydromechanics[M]. Delft, Holland: Delft University of Technology, 2001.
[4] TANG Yougang, ZHANG Suxia, ZHANG Ruoyu, et al. Development of study on the dynamic characteristics of deep water mooring system[J]. Journal of Marine Science and Application, 2007, 6(3): 17-23.

Memo

Memo:
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Last Update: 2010-05-02