Abstract
Several methods have been proposed in the literature to find a state-space model for the wave-radiation forces. In this paper, we compared four methods, two in the frequency domain and two in the time domain. The frequency-response function and the impulse response of the resulting state-space models were compared against those derived from the numerical code WAMIT. A new state-space module was implemented within FAST, an offshore wind turbine computer-aided engineering tool, and we compared the results against the previously implemented numerical convolution method. The results agreed between the two methods, with a significant reduction in required computational time when using the new state-space module.
Original language | American English |
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Number of pages | 12 |
DOIs | |
State | Published - 2013 |
Event | ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2013 - Nantes, France Duration: 9 Jun 2013 → 14 Jun 2013 |
Conference
Conference | ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2013 |
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Country/Territory | France |
City | Nantes |
Period | 9/06/13 → 14/06/13 |
Bibliographical note
See NREL/CP-5000-58099 for preprintNREL Publication Number
- NREL/CP-5000-61583
Keywords
- Linear potential-flow theory
- State-space model
- Time-convolution
- Wave radiation