A Coupled Hydrodynamic–Structural Model for Flexible Interconnected Multiple Floating Bodies
Evaluating the structural safety and seakeeping performance of very large floating structures (VLFS) using the rigid module flexible connector (RMFC) method remains challenging due to the complexity of the coupled hydrodynamic–structural responses in this system. In this study, a coupled hydrodynami...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/11/4/813 |
| _version_ | 1797604815729065984 |
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| author | Mingsheng Chen Mingjun Ouyang Hongrui Guo Meiyan Zou Chi Zhang |
| author_facet | Mingsheng Chen Mingjun Ouyang Hongrui Guo Meiyan Zou Chi Zhang |
| author_sort | Mingsheng Chen |
| collection | DOAJ |
| description | Evaluating the structural safety and seakeeping performance of very large floating structures (VLFS) using the rigid module flexible connector (RMFC) method remains challenging due to the complexity of the coupled hydrodynamic–structural responses in this system. In this study, a coupled hydrodynamic–structural frequency–time domain model is developed based on the RMFC method employing the planar Euler–Bernoulli beam elements to investigate the dynamic responses of multi-module floating systems. To reveal the dynamic characteristics of the systems, the coupled hydrodynamic–structural responses are investigated using a frequency–time-domain numerical model with viscous correction, in which the mass and stiffness attributes of connectors are incorporated into the system. Given the effects of hydrodynamic interaction, consideration is given to the case of three modular boxes connected by flexible beams aligned in series in shallow water to validate the present model. Higher efficiency and accuracy can be found in the system using viscous correction in potential flow theory and introducing state–space model to replace the convolution terms in the Cummins equation for the time domain. Moreover, this model can be extended to a considerable number of floating modules, which provides possibilities to analyze N-module floating systems. |
| first_indexed | 2024-03-11T04:52:07Z |
| format | Article |
| id | doaj.art-80d165132de64c98a36b25ae46ba555a |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-11T04:52:07Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-80d165132de64c98a36b25ae46ba555a2023-11-17T19:56:25ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-04-0111481310.3390/jmse11040813A Coupled Hydrodynamic–Structural Model for Flexible Interconnected Multiple Floating BodiesMingsheng Chen0Mingjun Ouyang1Hongrui Guo2Meiyan Zou3Chi Zhang4Key Laboratory of High Performance Ship Technology (Wuhan University of Technology), Ministry of Education, Wuhan 430063, ChinaKey Laboratory of High Performance Ship Technology (Wuhan University of Technology), Ministry of Education, Wuhan 430063, ChinaState Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaKey Laboratory of High Performance Ship Technology (Wuhan University of Technology), Ministry of Education, Wuhan 430063, ChinaTechnology Center for Offshore and Marine, Singapore 18411, SingaporeEvaluating the structural safety and seakeeping performance of very large floating structures (VLFS) using the rigid module flexible connector (RMFC) method remains challenging due to the complexity of the coupled hydrodynamic–structural responses in this system. In this study, a coupled hydrodynamic–structural frequency–time domain model is developed based on the RMFC method employing the planar Euler–Bernoulli beam elements to investigate the dynamic responses of multi-module floating systems. To reveal the dynamic characteristics of the systems, the coupled hydrodynamic–structural responses are investigated using a frequency–time-domain numerical model with viscous correction, in which the mass and stiffness attributes of connectors are incorporated into the system. Given the effects of hydrodynamic interaction, consideration is given to the case of three modular boxes connected by flexible beams aligned in series in shallow water to validate the present model. Higher efficiency and accuracy can be found in the system using viscous correction in potential flow theory and introducing state–space model to replace the convolution terms in the Cummins equation for the time domain. Moreover, this model can be extended to a considerable number of floating modules, which provides possibilities to analyze N-module floating systems.https://www.mdpi.com/2077-1312/11/4/813multi-module floating systemVLFSRMFCAQWAhydrodynamic analysisstate–space model |
| spellingShingle | Mingsheng Chen Mingjun Ouyang Hongrui Guo Meiyan Zou Chi Zhang A Coupled Hydrodynamic–Structural Model for Flexible Interconnected Multiple Floating Bodies Journal of Marine Science and Engineering multi-module floating system VLFS RMFC AQWA hydrodynamic analysis state–space model |
| title | A Coupled Hydrodynamic–Structural Model for Flexible Interconnected Multiple Floating Bodies |
| title_full | A Coupled Hydrodynamic–Structural Model for Flexible Interconnected Multiple Floating Bodies |
| title_fullStr | A Coupled Hydrodynamic–Structural Model for Flexible Interconnected Multiple Floating Bodies |
| title_full_unstemmed | A Coupled Hydrodynamic–Structural Model for Flexible Interconnected Multiple Floating Bodies |
| title_short | A Coupled Hydrodynamic–Structural Model for Flexible Interconnected Multiple Floating Bodies |
| title_sort | coupled hydrodynamic structural model for flexible interconnected multiple floating bodies |
| topic | multi-module floating system VLFS RMFC AQWA hydrodynamic analysis state–space model |
| url | https://www.mdpi.com/2077-1312/11/4/813 |
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