Computation of Wave Loads Under Multidirectional Sea States for Floating Offshore Wind Turbines: Paper No. OMAE2014-24148

Tiago Duarte; Sébastien Gueydon; Jason Jonkman; António Sarmento

doi:10.1115/OMAE2014-24148

Computation of Wave Loads Under Multidirectional Sea States for Floating Offshore Wind Turbines: Paper No. OMAE2014-24148

Tiago Duarte, Sébastien Gueydon, Jason Jonkman, António Sarmento

National Wind Technology Center

Research output: Contribution to conference › Paper › peer-review

21 Scopus Citations

Abstract

This paper focuses on the analysis of a floating wind turbine under multidirectional wave loading. Special attention is given to the different methods used to synthesize the multidirectional sea state. This analysis includes the doublesum and single-sum methods, as well as an equal-energy discretization of the directional spectrum. These three methods are compared in detail, including the ergodicity of the solution obtained. From the analysis, the equal-energy method proved to be the most computationally efficient while still retaining the ergodicity of the solution. This method was chosen to be implemented in the numerical code FAST. Preliminary results on the influence of these wave loads on a floating wind turbine showed significant additional roll and sway motion of the platform.

Original language	American English
Number of pages	8
DOIs	https://doi.org/10.1115/OMAE2014-24148 https://doi.org/10.1115/OMAE2014-24148
State	Published - 2014
Event	ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2014 - San Francisco, United States Duration: 8 Jun 2014 → 13 Jun 2014

Conference

Conference	ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2014
Country/Territory	United States
City	San Francisco
Period	8/06/14 → 13/06/14

Bibliographical note

See NREL/CP-5000-61161 for preprint

NREL Publication Number

NREL/CP-5000-63485

Keywords

Floating wind turbine
Multidirectional waves
Synthesis of multidirectional seas

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Duarte, T., Gueydon, S., Jonkman, J., & Sarmento, A. (2014). Computation of Wave Loads Under Multidirectional Sea States for Floating Offshore Wind Turbines: Paper No. OMAE2014-24148. Paper presented at ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2014, San Francisco, United States. https://doi.org/10.1115/OMAE2014-24148, https://doi.org/10.1115/OMAE2014-24148

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abstract = "This paper focuses on the analysis of a floating wind turbine under multidirectional wave loading. Special attention is given to the different methods used to synthesize the multidirectional sea state. This analysis includes the doublesum and single-sum methods, as well as an equal-energy discretization of the directional spectrum. These three methods are compared in detail, including the ergodicity of the solution obtained. From the analysis, the equal-energy method proved to be the most computationally efficient while still retaining the ergodicity of the solution. This method was chosen to be implemented in the numerical code FAST. Preliminary results on the influence of these wave loads on a floating wind turbine showed significant additional roll and sway motion of the platform.",

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author = "Tiago Duarte and S{\'e}bastien Gueydon and Jason Jonkman and Ant{\'o}nio Sarmento",

note = "See NREL/CP-5000-61161 for preprint; ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2014 ; Conference date: 08-06-2014 Through 13-06-2014",

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Duarte, T, Gueydon, S, Jonkman, J & Sarmento, A 2014, 'Computation of Wave Loads Under Multidirectional Sea States for Floating Offshore Wind Turbines: Paper No. OMAE2014-24148', Paper presented at ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2014, San Francisco, United States, 8/06/14 - 13/06/14. https://doi.org/10.1115/OMAE2014-24148, https://doi.org/10.1115/OMAE2014-24148

Computation of Wave Loads Under Multidirectional Sea States for Floating Offshore Wind Turbines: Paper No. OMAE2014-24148. / Duarte, Tiago; Gueydon, Sébastien; Jonkman, Jason et al.
2014. Paper presented at ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2014, San Francisco, United States.

Research output: Contribution to conference › Paper › peer-review

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T2 - ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2014

AU - Duarte, Tiago

AU - Gueydon, Sébastien

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AU - Sarmento, António

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AB - This paper focuses on the analysis of a floating wind turbine under multidirectional wave loading. Special attention is given to the different methods used to synthesize the multidirectional sea state. This analysis includes the doublesum and single-sum methods, as well as an equal-energy discretization of the directional spectrum. These three methods are compared in detail, including the ergodicity of the solution obtained. From the analysis, the equal-energy method proved to be the most computationally efficient while still retaining the ergodicity of the solution. This method was chosen to be implemented in the numerical code FAST. Preliminary results on the influence of these wave loads on a floating wind turbine showed significant additional roll and sway motion of the platform.

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Computation of Wave Loads Under Multidirectional Sea States for Floating Offshore Wind Turbines: Paper No. OMAE2014-24148

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Keywords

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