Modeling a non-linear mooring system for floating offshore wind using a hydraulic cylinder analogy
This is the author accepted manuscript. The final version is available from ASME via the DOI in this record The mooring system for a floating offshore wind turbine is a critical sub-system that ensures the safe station keeping of the platform and has a key influence on hydrodynamic stability. R&...
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Online Access: | http://hdl.handle.net/10871/36642 https://doi.org/10.1115/OMAE2019-96080 |
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ftunivexeter:oai:ore.exeter.ac.uk:10871/36642 2024-09-15T17:50:15+00:00 Modeling a non-linear mooring system for floating offshore wind using a hydraulic cylinder analogy Harrold, M Thies, PR Newsam, D Bittencourt Ferreira, C Johanning, L 2019 http://hdl.handle.net/10871/36642 https://doi.org/10.1115/OMAE2019-96080 en eng American Society of Mechanical Engineers (ASME) OMAE 2019: 38th International Conference on Ocean, Offshore and Arctic Engineering, 9-14 June 2019, Glasgow, UK doi:10.1115/OMAE2019-96080 103889 http://hdl.handle.net/10871/36642 © 2019 ASME 3999-01-01 Under indefinite embargo due to publisher policy http://www.rioxx.net/licenses/all-rights-reserved Conference paper 2019 ftunivexeter https://doi.org/10.1115/OMAE2019-96080 2024-07-29T03:24:16Z This is the author accepted manuscript. The final version is available from ASME via the DOI in this record The mooring system for a floating offshore wind turbine is a critical sub-system that ensures the safe station keeping of the platform and has a key influence on hydrodynamic stability. R&D efforts have increasingly explored the benefits of non-linear mooring systems for this application, as they have the potential to reduce the peak mooring loads and fatigue cycling, ultimately reducing the system cost. This paper reports on a hydraulic based mooring component that possesses these characteristics, attributable mostly to the non-linear deformation of a flexible bladder. This is not a typical hydraulic component and, as a consequence, modeling its dynamic performance is non-trivial. This paper addresses this by introducing an analogy to numerically model the system, in which the functionality of the mooring component is compared to that of a hydraulic cylinder. The development of a working model in Simscape Fluids is outlined, and is subsequently used to simulate the IMS in a realistic environment. It is found that the numerical model captures a number of the dynamic performance characteristics observed in a previously tested prototype of the IMS. Innovate UK Conference Object Arctic University of Exeter: Open Research Exeter (ORE) Volume 10: Ocean Renewable Energy |
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Open Polar |
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University of Exeter: Open Research Exeter (ORE) |
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ftunivexeter |
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English |
description |
This is the author accepted manuscript. The final version is available from ASME via the DOI in this record The mooring system for a floating offshore wind turbine is a critical sub-system that ensures the safe station keeping of the platform and has a key influence on hydrodynamic stability. R&D efforts have increasingly explored the benefits of non-linear mooring systems for this application, as they have the potential to reduce the peak mooring loads and fatigue cycling, ultimately reducing the system cost. This paper reports on a hydraulic based mooring component that possesses these characteristics, attributable mostly to the non-linear deformation of a flexible bladder. This is not a typical hydraulic component and, as a consequence, modeling its dynamic performance is non-trivial. This paper addresses this by introducing an analogy to numerically model the system, in which the functionality of the mooring component is compared to that of a hydraulic cylinder. The development of a working model in Simscape Fluids is outlined, and is subsequently used to simulate the IMS in a realistic environment. It is found that the numerical model captures a number of the dynamic performance characteristics observed in a previously tested prototype of the IMS. Innovate UK |
format |
Conference Object |
author |
Harrold, M Thies, PR Newsam, D Bittencourt Ferreira, C Johanning, L |
spellingShingle |
Harrold, M Thies, PR Newsam, D Bittencourt Ferreira, C Johanning, L Modeling a non-linear mooring system for floating offshore wind using a hydraulic cylinder analogy |
author_facet |
Harrold, M Thies, PR Newsam, D Bittencourt Ferreira, C Johanning, L |
author_sort |
Harrold, M |
title |
Modeling a non-linear mooring system for floating offshore wind using a hydraulic cylinder analogy |
title_short |
Modeling a non-linear mooring system for floating offshore wind using a hydraulic cylinder analogy |
title_full |
Modeling a non-linear mooring system for floating offshore wind using a hydraulic cylinder analogy |
title_fullStr |
Modeling a non-linear mooring system for floating offshore wind using a hydraulic cylinder analogy |
title_full_unstemmed |
Modeling a non-linear mooring system for floating offshore wind using a hydraulic cylinder analogy |
title_sort |
modeling a non-linear mooring system for floating offshore wind using a hydraulic cylinder analogy |
publisher |
American Society of Mechanical Engineers (ASME) |
publishDate |
2019 |
url |
http://hdl.handle.net/10871/36642 https://doi.org/10.1115/OMAE2019-96080 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
OMAE 2019: 38th International Conference on Ocean, Offshore and Arctic Engineering, 9-14 June 2019, Glasgow, UK doi:10.1115/OMAE2019-96080 103889 http://hdl.handle.net/10871/36642 |
op_rights |
© 2019 ASME 3999-01-01 Under indefinite embargo due to publisher policy http://www.rioxx.net/licenses/all-rights-reserved |
op_doi |
https://doi.org/10.1115/OMAE2019-96080 |
container_title |
Volume 10: Ocean Renewable Energy |
_version_ |
1810292097255735296 |