Design and Analysis of a Mooring System for a Wave Energy Converter
The objective of this work is to develop an efficient method to carry out the preliminary design of the mooring system for a wave energy converter. A practical mooring design procedure is applied to a specific case of study, and it can be replicated for other cases. Firstly, the static analysis is p...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-07-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/9/7/782 |
| _version_ | 1797526781187588096 |
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| author | Francesco Depalo Shan Wang Sheng Xu C. Guedes Soares |
| author_facet | Francesco Depalo Shan Wang Sheng Xu C. Guedes Soares |
| author_sort | Francesco Depalo |
| collection | DOAJ |
| description | The objective of this work is to develop an efficient method to carry out the preliminary design of the mooring system for a wave energy converter. A practical mooring design procedure is applied to a specific case of study, and it can be replicated for other cases. Firstly, the static analysis is performed for a configuration with three mooring cables with different pre-tensions on fairlead, diameters of the cables, and materials. Based on these configurations from the static analysis, a quasi-static analysis is carried out in the frequency domain and a preliminary design is conducted according to DNV rules. Then, a 3-h dynamic analysis in the time domain is performed on several selected configurations, considering the same environmental conditions in the quasi-static analysis using the finite element method. Extreme dynamic responses of the system, such as extreme surge motion and mooring tensions, are estimated by the global maximum method, which is performed by fitting 20 individual maximum observations by Gumbel distribution. The quasi-static method is validated by comparing the results of extreme tension and displacement with the coupled time domain analysis. In addition, the influence of pre-tensions and cable diameters on the static and dynamic responses of the mooring system are discussed. |
| first_indexed | 2024-03-10T09:35:12Z |
| format | Article |
| id | doaj.art-45c627499fdc464d8ab0e7c4e59d442e |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T09:35:12Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-45c627499fdc464d8ab0e7c4e59d442e2023-11-22T04:09:38ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-07-019778210.3390/jmse9070782Design and Analysis of a Mooring System for a Wave Energy ConverterFrancesco Depalo0Shan Wang1Sheng Xu2C. Guedes Soares3Centre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, PortugalCentre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, PortugalCentre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, PortugalCentre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, PortugalThe objective of this work is to develop an efficient method to carry out the preliminary design of the mooring system for a wave energy converter. A practical mooring design procedure is applied to a specific case of study, and it can be replicated for other cases. Firstly, the static analysis is performed for a configuration with three mooring cables with different pre-tensions on fairlead, diameters of the cables, and materials. Based on these configurations from the static analysis, a quasi-static analysis is carried out in the frequency domain and a preliminary design is conducted according to DNV rules. Then, a 3-h dynamic analysis in the time domain is performed on several selected configurations, considering the same environmental conditions in the quasi-static analysis using the finite element method. Extreme dynamic responses of the system, such as extreme surge motion and mooring tensions, are estimated by the global maximum method, which is performed by fitting 20 individual maximum observations by Gumbel distribution. The quasi-static method is validated by comparing the results of extreme tension and displacement with the coupled time domain analysis. In addition, the influence of pre-tensions and cable diameters on the static and dynamic responses of the mooring system are discussed.https://www.mdpi.com/2077-1312/9/7/782mooring systemWECrenewable energiesquasi-static analysisdynamic analysis |
| spellingShingle | Francesco Depalo Shan Wang Sheng Xu C. Guedes Soares Design and Analysis of a Mooring System for a Wave Energy Converter Journal of Marine Science and Engineering mooring system WEC renewable energies quasi-static analysis dynamic analysis |
| title | Design and Analysis of a Mooring System for a Wave Energy Converter |
| title_full | Design and Analysis of a Mooring System for a Wave Energy Converter |
| title_fullStr | Design and Analysis of a Mooring System for a Wave Energy Converter |
| title_full_unstemmed | Design and Analysis of a Mooring System for a Wave Energy Converter |
| title_short | Design and Analysis of a Mooring System for a Wave Energy Converter |
| title_sort | design and analysis of a mooring system for a wave energy converter |
| topic | mooring system WEC renewable energies quasi-static analysis dynamic analysis |
| url | https://www.mdpi.com/2077-1312/9/7/782 |
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