Comparison Of Real-time Hybrid Model Testing Of A Braceless Semi-Submersible Wind Turbine And Numerical Simulations
In this paper, integrated analyses performed in SIMA arecompared against experimental results obtained using real-timehybrid model testing (ReaTHM®) carried out in the oceanbasin facilities of MARINTEK in October 2015. Theexperimental data is from a 1:30 scaled model of a semisubmersiblewind turbine...
| Published in: | Volume 10: Ocean Renewable Energy |
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| Main Authors: | , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
American Society of Mechanical Engineers (ASME)
2017
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| Subjects: | |
| Online Access: | https://pure.qub.ac.uk/en/publications/97d3e5c2-f674-40e8-a724-39d93da3db0a https://doi.org/10.1115/OMAE2017-61121 |
| Summary: | In this paper, integrated analyses performed in SIMA arecompared against experimental results obtained using real-timehybrid model testing (ReaTHM®) carried out in the oceanbasin facilities of MARINTEK in October 2015. Theexperimental data is from a 1:30 scaled model of a semisubmersiblewind turbine. Coupled aero-hydro-servo-elasticsimulations are performed in MARINTEK’s SIMA software.The present work extends previous results from Berthelsen etal. [1] by including a blade element/momentum (BEM) modelfor the rotor forces in SIMA and comparing the coupledresponses of the system to the experimental results. Thepreviously presented hydrodynamic model is also furtherdeveloped, and the importance of second order loads (andapplicability of approximate methods for their calculations) isexamined. Low-frequency hydrodynamic excitation anddamping are seen to be important, but these loads include acombination of viscous and potential forces. For the selectedconcept, the second order potential flow forces have limitedeffects on the responses. |
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