| Numerical and Experimental Study on Hydrodynamic Performance of A Novel Semi-Submersible Concept |
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| 作者姓名： | GAO Song TAO Long-bin KOU Yu-feng LU Chao SUN Jiang-long |
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| 作者单位： | State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China,Department of Naval Architecture and Marine Engineering, University of Strathclyde, Glasgow, G11XQ, United Kingdom,State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China,China Ship Development and Design Center, Wuhan 430064, China,Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China;School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China |
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| 基金项目： | This work was financially supported by the 7th Generation Ultra Deep Water Drilling Unit Innovation Project and conducted at the State Key Laboratory of Ocean Engineering at Shanghai Jiao Tong University. |
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| 摘 要： | 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.
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| 关 键 词： | multiple column platform (MCP) semi-submersible platform numerical simulation model test response amplitude operators (RAOs) |
| 收稿时间： | 2017/7/11 0:00:00 |
| 修稿时间： | 2017/11/13 0:00:00 |
Numerical and Experimental Study on Hydrodynamic Performance of A Novel Semi-Submersible Concept |
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| GAO Song,TAO Long-bin,KOU Yu-feng,LU Chao,SUN Jiang-long.Numerical and Experimental Study on Hydrodynamic Performance of A Novel Semi-Submersible Concept[J].Ocean Engineering,2018,32(2):144-156. |
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| Authors: | GAO Song TAO Long-bin KOU Yu-feng LU Chao and SUN Jiang-long |
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| Institution: | State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China,Department of Naval Architecture and Marine Engineering, University of Strathclyde, Glasgow, G11XQ, United Kingdom,State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China,China Ship Development and Design Center, Wuhan 430064, China and Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China;School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China |
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| 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. |
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| Keywords: | multiple column platform (MCP) semi-submersible platform numerical simulation model test response amplitude operators (RAOs) |
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