Numerical Analysis of Dynamics of Jack-Up Offshore Platform and Its Seabed Foundation under Ocean Wave
Jack-up offshore platform is a type of important marine structure, which is mainly used for satellite launch, oil exploitation, and other engineering tasks in the offshore area. The offshore platform is bound to be subjected to wave loading in the course of use. Whether it can withstand the wave imp...
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| Format: | Article |
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MDPI AG
2022-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/7/3299 |
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| author | Hailin Ye Dawei Yu Jianhong Ye Zhiwen Yang |
| author_facet | Hailin Ye Dawei Yu Jianhong Ye Zhiwen Yang |
| author_sort | Hailin Ye |
| collection | DOAJ |
| description | Jack-up offshore platform is a type of important marine structure, which is mainly used for satellite launch, oil exploitation, and other engineering tasks in the offshore area. The offshore platform is bound to be subjected to wave loading in the course of use. Whether it can withstand the wave impact is an important engineering problem. To solve this engineering problem, the self-developed fluid–structure–foundation interaction coupling model OlaFlow-ABAQUS is used to explore the dynamic response characteristics of a jack-up offshore platform and its seabed foundation under three conventional wave conditions (wave height is 3, 5, and 7 m, respectively) in a coupled way. The numerical results show that only a small amplitude of periodic sloshing occurs for the jack-up offshore platform under the three conventional wave conditions. The maximum sloshing amplitude is up to 8 cm, and there is no visible residual displacement. It is indicated that there is no plastic deformation zone in the seabed foundation near the pile legs of the jack-up platform. It can thus be concluded that the jack-up platform has excellent stability under conventional wave conditions. Under conventional wave loading, momentary liquefaction occurs in the seabed foundation around the pile legs of the platform, and the maximum liquefaction depth is about 1 m. This study indicates that the coupling model OlaFlow-ABAQUS for the fluid–structure–foundation interaction is feasible, and has some advantages to study the dynamic response and to evaluate the stability of large-scale marine structures and their seabed foundations under ocean waves. |
| first_indexed | 2024-03-09T12:09:43Z |
| format | Article |
| id | doaj.art-855852053e794d4d8fa49a492e531b16 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T12:09:43Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-855852053e794d4d8fa49a492e531b162023-11-30T22:53:49ZengMDPI AGApplied Sciences2076-34172022-03-01127329910.3390/app12073299Numerical Analysis of Dynamics of Jack-Up Offshore Platform and Its Seabed Foundation under Ocean WaveHailin Ye0Dawei Yu1Jianhong Ye2Zhiwen Yang3Beijing Special Engineering Design and Research Institute, Beijing 100028, ChinaState Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, ChinaState Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, ChinaTianjin Research Institute for Water Transport Engineering, M.O.T., Tianjin 300456, ChinaJack-up offshore platform is a type of important marine structure, which is mainly used for satellite launch, oil exploitation, and other engineering tasks in the offshore area. The offshore platform is bound to be subjected to wave loading in the course of use. Whether it can withstand the wave impact is an important engineering problem. To solve this engineering problem, the self-developed fluid–structure–foundation interaction coupling model OlaFlow-ABAQUS is used to explore the dynamic response characteristics of a jack-up offshore platform and its seabed foundation under three conventional wave conditions (wave height is 3, 5, and 7 m, respectively) in a coupled way. The numerical results show that only a small amplitude of periodic sloshing occurs for the jack-up offshore platform under the three conventional wave conditions. The maximum sloshing amplitude is up to 8 cm, and there is no visible residual displacement. It is indicated that there is no plastic deformation zone in the seabed foundation near the pile legs of the jack-up platform. It can thus be concluded that the jack-up platform has excellent stability under conventional wave conditions. Under conventional wave loading, momentary liquefaction occurs in the seabed foundation around the pile legs of the platform, and the maximum liquefaction depth is about 1 m. This study indicates that the coupling model OlaFlow-ABAQUS for the fluid–structure–foundation interaction is feasible, and has some advantages to study the dynamic response and to evaluate the stability of large-scale marine structures and their seabed foundations under ocean waves.https://www.mdpi.com/2076-3417/12/7/3299wave impactjack-up offshore platformseabed foundationdynamic responsecoupled modelfluid–structure–seabed interaction |
| spellingShingle | Hailin Ye Dawei Yu Jianhong Ye Zhiwen Yang Numerical Analysis of Dynamics of Jack-Up Offshore Platform and Its Seabed Foundation under Ocean Wave Applied Sciences wave impact jack-up offshore platform seabed foundation dynamic response coupled model fluid–structure–seabed interaction |
| title | Numerical Analysis of Dynamics of Jack-Up Offshore Platform and Its Seabed Foundation under Ocean Wave |
| title_full | Numerical Analysis of Dynamics of Jack-Up Offshore Platform and Its Seabed Foundation under Ocean Wave |
| title_fullStr | Numerical Analysis of Dynamics of Jack-Up Offshore Platform and Its Seabed Foundation under Ocean Wave |
| title_full_unstemmed | Numerical Analysis of Dynamics of Jack-Up Offshore Platform and Its Seabed Foundation under Ocean Wave |
| title_short | Numerical Analysis of Dynamics of Jack-Up Offshore Platform and Its Seabed Foundation under Ocean Wave |
| title_sort | numerical analysis of dynamics of jack up offshore platform and its seabed foundation under ocean wave |
| topic | wave impact jack-up offshore platform seabed foundation dynamic response coupled model fluid–structure–seabed interaction |
| url | https://www.mdpi.com/2076-3417/12/7/3299 |
| work_keys_str_mv | AT hailinye numericalanalysisofdynamicsofjackupoffshoreplatformanditsseabedfoundationunderoceanwave AT daweiyu numericalanalysisofdynamicsofjackupoffshoreplatformanditsseabedfoundationunderoceanwave AT jianhongye numericalanalysisofdynamicsofjackupoffshoreplatformanditsseabedfoundationunderoceanwave AT zhiwenyang numericalanalysisofdynamicsofjackupoffshoreplatformanditsseabedfoundationunderoceanwave |