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Dynamic response analysis of arctic semi-submersible offshore platform under different environmental loads
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Ao-bo ZHANG1, Zhen-ju CHUANG1, She-wen LIU1, Chun-zheng LI2, Shun-ying JI3, Yan QU4
Journal of Ship Mechanics | 2024, 28(3) : 422 - 434
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Journal of Ship Mechanics | 2024, 28(3): 422-434
• Structural Mechanics •
Dynamic response analysis of arctic semi-submersible offshore platform under different environmental loads
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Ao-bo ZHANG1, Zhen-ju CHUANG1, She-wen LIU1, Chun-zheng LI2, Shun-ying JI3, Yan QU4
Affiliations
  • 1.Naval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian 116026, China
  • 2.Shanghai Investigation, Design & Research Institute Co., Ltd., Shanghai 200335, China
  • 3.State Key Laboratory of Structure Analysis of Industrial Equipment, Dalian University of Technology, Dalian 116024, China
  • 4.School of Marine Science and Engineering, South China University of Technology, Guangzhou 511442, China
Published: 2024-03-20 doi: 10.3969/j.issn.1007-7294.2024.03.010
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The Arctic region is rich in oil and gas resources. The exploitation and utilization of oil and gas resources in this area have great prospects, but are also very challenging. Arctic areas have ice-free and ice-covered seasons. As current design specifications for offshore platforms do not fully consider the impact of sea ice, the effect of wave loads and ice loads should be considered together to enable the platform to operate all year round. In this paper, the dynamic response of a semi-submersible offshore platform under different conditions was studied, such as wave, level ice, and ice floes. Potential flow theory and Morrison equation were used to calculate wave loads while the discrete element method was used to solve the ice loads. The slender body finite element method was used for analysis of the slender system. The motion of the platform and the force of the slender system were solved by nonlinear time-domain calculation. The results show that compared with other environmental loads, the tension of the mooring line is the highest under level ice. In a broken ice field with smaller ice thickness, ice concentration, and ice floe size, the platform motion conforms to current safety specifications. The research of this paper will provide a reference for the safe development of oil and gas resources in the Arctic region.

Arctic oil and gas resource  /  semi-submersible offshore platform  /  wave load  /  ice load  /  ice-structure interaction
Ao-bo ZHANG, Zhen-ju CHUANG, She-wen LIU, Chun-zheng LI, Shun-ying JI, Yan QU. Dynamic response analysis of arctic semi-submersible offshore platform under different environmental loads[J]. Journal of Ship Mechanics, 2024 , 28 (3) : 422 -434 . DOI: 10.3969/j.issn.1007-7294.2024.03.010
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Year 2024 volume 28 Issue 3
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Article Info
doi: 10.3969/j.issn.1007-7294.2024.03.010
  • Receive Date：2023-09-27
  • Online Date：2026-03-21
  • Published：2024-03-20
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  • Received：2023-09-27
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Affiliations
    1.Naval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian 116026, China
    2.Shanghai Investigation, Design & Research Institute Co., Ltd., Shanghai 200335, China
    3.State Key Laboratory of Structure Analysis of Industrial Equipment, Dalian University of Technology, Dalian 116024, China
    4.School of Marine Science and Engineering, South China University of Technology, Guangzhou 511442, China
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表12种不同金属材料的力学参数
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Family		 属数
Number of
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Number of
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Percentage of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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