Experimental and Analytical Investigation for the Responses of Semi-Submersible Platform
This paper presents the results of model tests of an offshore semisubmersible platform subjected to regular sea waves that was conducted in the wave tank of the offshore engineering laboratory at Universiti Teknologi PETRONAS. The measured responses were compared with the numerical results obtai...
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2010
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my.utp.eprints.43172017-03-20T01:59:48Z Experimental and Analytical Investigation for the Responses of Semi-Submersible Platform Ng , C.Y. Kurian, V.J. Muhammed , M.A.W. TC Hydraulic engineering. Ocean engineering TA Engineering (General). Civil engineering (General) This paper presents the results of model tests of an offshore semisubmersible platform subjected to regular sea waves that was conducted in the wave tank of the offshore engineering laboratory at Universiti Teknologi PETRONAS. The measured responses were compared with the numerical results obtained by using time domain analysis and linear wave diffraction analysis. The semi-submersible platform prototype was modeled as a rigid body with three degrees of freedom restrained by mooring lines. In the time domain analysis, Linear Airy wave theory and Morison modified equation were used for calculating the wave forces on the structure. The mass, damping and stiffness matrices were evaluated at every time step and the equations of motion were formulated for the platform dynamic equilibrium. The equations were solved using Newmark Beta time domain dynamic analysis method. The results were obtained as Response Amplitude Operators (RAO) in surge, heave and pitch. Then the RAOs were obtained using software by linear wave diffraction analysis. The wave tank tests responses were compared with the analytical responses and the approaches were validated the applicability on the structures with large hulls e.g. the semisubmersible platforms. 2010-12 Conference or Workshop Item PeerReviewed application/pdf http://eprints.utp.edu.my/4317/1/APOC_2010-Muhammad_MAW.pdf Ng , C.Y. and Kurian, V.J. and Muhammed , M.A.W. (2010) Experimental and Analytical Investigation for the Responses of Semi-Submersible Platform. In: Asia Pacific Offshore Conference 2010 (APOC 2010), 13-14 December 2010, Kuala Lumpur. http://eprints.utp.edu.my/4317/ |
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TC Hydraulic engineering. Ocean engineering TA Engineering (General). Civil engineering (General) |
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TC Hydraulic engineering. Ocean engineering TA Engineering (General). Civil engineering (General) Ng , C.Y. Kurian, V.J. Muhammed , M.A.W. Experimental and Analytical Investigation for the Responses of Semi-Submersible Platform |
| description |
This paper presents the results of model tests of an offshore semisubmersible
platform subjected to regular sea waves that was
conducted in the wave tank of the offshore engineering laboratory at
Universiti Teknologi PETRONAS. The measured responses were
compared with the numerical results obtained by using time domain
analysis and linear wave diffraction analysis. The semi-submersible
platform prototype was modeled as a rigid body with three degrees of
freedom restrained by mooring lines. In the time domain analysis,
Linear Airy wave theory and Morison modified equation were used
for calculating the wave forces on the structure. The mass, damping
and stiffness matrices were evaluated at every time step and the
equations of motion were formulated for the platform dynamic
equilibrium. The equations were solved using Newmark Beta time domain dynamic analysis method. The results were obtained as Response Amplitude Operators (RAO) in surge, heave and pitch. Then the RAOs were obtained using software by linear wave diffraction analysis. The wave tank tests responses were compared with the analytical responses and the approaches were validated the applicability on the structures with large hulls e.g. the semisubmersible
platforms. |
| format |
Conference or Workshop Item |
| author |
Ng , C.Y. Kurian, V.J. Muhammed , M.A.W. |
| author_facet |
Ng , C.Y. Kurian, V.J. Muhammed , M.A.W. |
| author_sort |
Ng , C.Y. |
| title |
Experimental and Analytical Investigation for the Responses of Semi-Submersible Platform |
| title_short |
Experimental and Analytical Investigation for the Responses of Semi-Submersible Platform |
| title_full |
Experimental and Analytical Investigation for the Responses of Semi-Submersible Platform |
| title_fullStr |
Experimental and Analytical Investigation for the Responses of Semi-Submersible Platform |
| title_full_unstemmed |
Experimental and Analytical Investigation for the Responses of Semi-Submersible Platform |
| title_sort |
experimental and analytical investigation for the responses of semi-submersible platform |
| publishDate |
2010 |
| url |
http://eprints.utp.edu.my/4317/1/APOC_2010-Muhammad_MAW.pdf http://eprints.utp.edu.my/4317/ |
| _version_ |
1738655331603447808 |
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13.211869 |