Research on Hydroelastic Response of an FMRC Hexagon Enclosed Platform
The numerical hydroelastic method is used to study the structural response of a hexagon enclosed platform (HEP) of flexible module rigid connector (FMRC) structure that can provide life accommodation, ship berthing and marine supply for ships sailing in the deep ocean. Six trapezoidal floating struc...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Symmetry |
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| Online Access: | https://www.mdpi.com/2073-8994/13/7/1110 |
| _version_ | 1797529172946452480 |
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| author | Wei-Qin Liu Luo-Nan Xiong Guo-Wei Zhang Meng Yang Wei-Guo Wu Xue-Min Song |
| author_facet | Wei-Qin Liu Luo-Nan Xiong Guo-Wei Zhang Meng Yang Wei-Guo Wu Xue-Min Song |
| author_sort | Wei-Qin Liu |
| collection | DOAJ |
| description | The numerical hydroelastic method is used to study the structural response of a hexagon enclosed platform (HEP) of flexible module rigid connector (FMRC) structure that can provide life accommodation, ship berthing and marine supply for ships sailing in the deep ocean. Six trapezoidal floating structures constitute the HEP structure so that it is a symmetrical very large floating structure (VLFS). The HEP has the characteristics of large area and small depth, so its hydroelastic response is significant. Therefore, this paper studies the structural responses of a hexagon enclosed platform of FMRC structure in waves by means of a 3D potential-flow hydroelastic method based on modal superposition. Numerical models, including the hydrodynamic model, wet surface model and finite element method (FEM) model, are established, a rigid connection is simulated by many-point-contraction (MPC) and the number of wave cases is determined. The load and structural response of HEP are obtained and analyzed in all wave cases, and frequency-domain hydroelastic calculation and time-domain hydroelastic calculation are carried out. After obtaining a number of response amplitude operators (RAOs) for stress and time-domain stress histories, the mechanism of the HEP structure is compared and analyzed. This study is used to guide engineering design for enclosed-type ocean platforms. |
| first_indexed | 2024-03-10T10:09:58Z |
| format | Article |
| id | doaj.art-aa0718fa62b84e1eb6fb2fd9f9842fb5 |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-03-10T10:09:58Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-aa0718fa62b84e1eb6fb2fd9f9842fb52023-11-22T01:15:12ZengMDPI AGSymmetry2073-89942021-06-01137111010.3390/sym13071110Research on Hydroelastic Response of an FMRC Hexagon Enclosed PlatformWei-Qin Liu0Luo-Nan Xiong1Guo-Wei Zhang2Meng Yang3Wei-Guo Wu4Xue-Min Song5Departments of Naval Architecture, Ocean and Structural Engineering, School of Transportation, Wuhan University of Technology, Wuhan 430063, ChinaDepartments of Naval Architecture, Ocean and Structural Engineering, School of Transportation, Wuhan University of Technology, Wuhan 430063, ChinaDepartments of Naval Architecture, Ocean and Structural Engineering, School of Transportation, Wuhan University of Technology, Wuhan 430063, ChinaChina Ship Development and Design Center, Wuhan 430064, ChinaDepartments of Naval Architecture, Ocean and Structural Engineering, School of Transportation, Wuhan University of Technology, Wuhan 430063, ChinaDepartments of Naval Architecture, Ocean and Structural Engineering, School of Transportation, Wuhan University of Technology, Wuhan 430063, ChinaThe numerical hydroelastic method is used to study the structural response of a hexagon enclosed platform (HEP) of flexible module rigid connector (FMRC) structure that can provide life accommodation, ship berthing and marine supply for ships sailing in the deep ocean. Six trapezoidal floating structures constitute the HEP structure so that it is a symmetrical very large floating structure (VLFS). The HEP has the characteristics of large area and small depth, so its hydroelastic response is significant. Therefore, this paper studies the structural responses of a hexagon enclosed platform of FMRC structure in waves by means of a 3D potential-flow hydroelastic method based on modal superposition. Numerical models, including the hydrodynamic model, wet surface model and finite element method (FEM) model, are established, a rigid connection is simulated by many-point-contraction (MPC) and the number of wave cases is determined. The load and structural response of HEP are obtained and analyzed in all wave cases, and frequency-domain hydroelastic calculation and time-domain hydroelastic calculation are carried out. After obtaining a number of response amplitude operators (RAOs) for stress and time-domain stress histories, the mechanism of the HEP structure is compared and analyzed. This study is used to guide engineering design for enclosed-type ocean platforms.https://www.mdpi.com/2073-8994/13/7/1110hexagon enclosed platformFMRChydroelasticloadstressfrequency-domain |
| spellingShingle | Wei-Qin Liu Luo-Nan Xiong Guo-Wei Zhang Meng Yang Wei-Guo Wu Xue-Min Song Research on Hydroelastic Response of an FMRC Hexagon Enclosed Platform Symmetry hexagon enclosed platform FMRC hydroelastic load stress frequency-domain |
| title | Research on Hydroelastic Response of an FMRC Hexagon Enclosed Platform |
| title_full | Research on Hydroelastic Response of an FMRC Hexagon Enclosed Platform |
| title_fullStr | Research on Hydroelastic Response of an FMRC Hexagon Enclosed Platform |
| title_full_unstemmed | Research on Hydroelastic Response of an FMRC Hexagon Enclosed Platform |
| title_short | Research on Hydroelastic Response of an FMRC Hexagon Enclosed Platform |
| title_sort | research on hydroelastic response of an fmrc hexagon enclosed platform |
| topic | hexagon enclosed platform FMRC hydroelastic load stress frequency-domain |
| url | https://www.mdpi.com/2073-8994/13/7/1110 |
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