A CFD-FEA Method for Hydroelastic Analysis of Floating Structures
The so-called large multi-body floating offshore structure is a new type of offshore structure with a huge and extremely flat deck area, which has a promising prospect as a floating port and also in applications in the area of marine space exploitation. Due to its unique structural form, the hydrody...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/11/4/737 |
| _version_ | 1797604836473044992 |
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| author | Nan Gu Deli Liang Xueqian Zhou Huilong Ren |
| author_facet | Nan Gu Deli Liang Xueqian Zhou Huilong Ren |
| author_sort | Nan Gu |
| collection | DOAJ |
| description | The so-called large multi-body floating offshore structure is a new type of offshore structure with a huge and extremely flat deck area, which has a promising prospect as a floating port and also in applications in the area of marine space exploitation. Due to its unique structural form, the hydrodynamic and structural response characteristics are very complex. Specifically, due to the instantaneous position variation in the body surface, the nonlinearity of the free surface, the interactions between floating bodies, and the elastic deformation of floating bodies, the nonlinear factors are significant and cannot be neglected. For these kinds of problems, methods based on CFD-FEA (computation fluid dynamics–finite element analysis) coupling simulation have significant advantages over traditional methods. In the present paper, the hydrodynamic and structural response characteristics of a large multi-body floating offshore structure are studied using a CFD-FEA method, and the results are compared with those obtained by the potential-flow-based commercial code SESAM/WADAM, and a three-dimensional nonlinear hydroelastic analysis commercial code COMPASS-WALCS-NE. The comparison and the analysis of the results show that the CFD-FEA method presented in this study can well simulate the behavior of the hydroelastic responses of flexible floating structures and has the potential to capture complex nonlinear behaviors. |
| first_indexed | 2024-03-11T04:52:25Z |
| format | Article |
| id | doaj.art-d6c09f8a477443f5b337fd83315930b8 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-11T04:52:25Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-d6c09f8a477443f5b337fd83315930b82023-11-17T19:55:18ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-03-0111473710.3390/jmse11040737A CFD-FEA Method for Hydroelastic Analysis of Floating StructuresNan Gu0Deli Liang1Xueqian Zhou2Huilong Ren3College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, ChinaBeijing Institute of Astronautical System Engineering, Beijing 100076, ChinaCollege of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, ChinaThe so-called large multi-body floating offshore structure is a new type of offshore structure with a huge and extremely flat deck area, which has a promising prospect as a floating port and also in applications in the area of marine space exploitation. Due to its unique structural form, the hydrodynamic and structural response characteristics are very complex. Specifically, due to the instantaneous position variation in the body surface, the nonlinearity of the free surface, the interactions between floating bodies, and the elastic deformation of floating bodies, the nonlinear factors are significant and cannot be neglected. For these kinds of problems, methods based on CFD-FEA (computation fluid dynamics–finite element analysis) coupling simulation have significant advantages over traditional methods. In the present paper, the hydrodynamic and structural response characteristics of a large multi-body floating offshore structure are studied using a CFD-FEA method, and the results are compared with those obtained by the potential-flow-based commercial code SESAM/WADAM, and a three-dimensional nonlinear hydroelastic analysis commercial code COMPASS-WALCS-NE. The comparison and the analysis of the results show that the CFD-FEA method presented in this study can well simulate the behavior of the hydroelastic responses of flexible floating structures and has the potential to capture complex nonlinear behaviors.https://www.mdpi.com/2077-1312/11/4/737floating structureCFD-FEAhydroelasticitynonlinear wave loads |
| spellingShingle | Nan Gu Deli Liang Xueqian Zhou Huilong Ren A CFD-FEA Method for Hydroelastic Analysis of Floating Structures Journal of Marine Science and Engineering floating structure CFD-FEA hydroelasticity nonlinear wave loads |
| title | A CFD-FEA Method for Hydroelastic Analysis of Floating Structures |
| title_full | A CFD-FEA Method for Hydroelastic Analysis of Floating Structures |
| title_fullStr | A CFD-FEA Method for Hydroelastic Analysis of Floating Structures |
| title_full_unstemmed | A CFD-FEA Method for Hydroelastic Analysis of Floating Structures |
| title_short | A CFD-FEA Method for Hydroelastic Analysis of Floating Structures |
| title_sort | cfd fea method for hydroelastic analysis of floating structures |
| topic | floating structure CFD-FEA hydroelasticity nonlinear wave loads |
| url | https://www.mdpi.com/2077-1312/11/4/737 |
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