State-Space Realization of the Wave-Radiation Force within FAST: Preprint

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Several methods have been proposed in the literature to find a state-space model for the wave-radiation forces. In this paper, four methods were compared, 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 the ones derived by the numerical code WAMIT. The implementation of the state-space module within the FAST offshore wind turbine computer-aided engineering (CAE) tool was verified, comparing the results against the previously implemented numerical convolution method. The results agreed between the two methods, with a significant reduction in required computational ... continued below

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14 p.

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Duarte, T.; Sarmento, A.; Alves, M. & Jonkman, J. June 1, 2013.

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Description

Several methods have been proposed in the literature to find a state-space model for the wave-radiation forces. In this paper, four methods were compared, 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 the ones derived by the numerical code WAMIT. The implementation of the state-space module within the FAST offshore wind turbine computer-aided engineering (CAE) tool was verified, comparing 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 state-space module.

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14 p.

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  • Presented at the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering, 9-14 June 2013, Nantes, France

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  • Report No.: NREL/CP-5000-58099
  • Grant Number: AC36-08GO28308
  • Office of Scientific & Technical Information Report Number: 1087798
  • Archival Resource Key: ark:/67531/metadc836419

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  • June 1, 2013

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  • May 19, 2016, 9:45 a.m.

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  • April 3, 2017, 8:09 p.m.

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Duarte, T.; Sarmento, A.; Alves, M. & Jonkman, J. State-Space Realization of the Wave-Radiation Force within FAST: Preprint, article, June 1, 2013; Golden, Colorado. (digital.library.unt.edu/ark:/67531/metadc836419/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.