Impact of Mooring Lines Dynamics on the Fatigue and Ultimate Loads of Three Offshore Floating Wind Turbines Computed with IEC 61400-3 Guideline

Azcona Armendáriz, José and Palacio, David and Munduate Echarri, Xabier and Gonzalez Gutierrez, Leo Miguel and Nygaard, Tor Anders (2017). Impact of Mooring Lines Dynamics on the Fatigue and Ultimate Loads of Three Offshore Floating Wind Turbines Computed with IEC 61400-3 Guideline. "Wind Energy", v. 20 (n. 5); pp. 797-813. ISSN 1095-4244. https://doi.org/10.1002/we.2064.

Description

Title: Impact of Mooring Lines Dynamics on the Fatigue and Ultimate Loads of Three Offshore Floating Wind Turbines Computed with IEC 61400-3 Guideline
Author/s:
  • Azcona Armendáriz, José
  • Palacio, David
  • Munduate Echarri, Xabier
  • Gonzalez Gutierrez, Leo Miguel
  • Nygaard, Tor Anders
Item Type: Article
Título de Revista/Publicación: Wind Energy
Date: May 2017
ISSN: 1095-4244
Volume: 20
Subjects:
Freetext Keywords: offshore wind turbine; mooring lines; dynamics; coupled codes; loads calculation; standards
Faculty: E.T.S.I. Navales (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The calculation of loads for floating offshore wind turbines requires time-domain integrated simulation tools where most of the physical concepts involved in the system dynamics are considered. The loads at the different components are used for the structural calculation and influence the design noticeably. This study quantifies the influence of mooring dynamic models on the calculation of fatigue and ultimate loads with integrated tools and compares its performance with a lower computational cost quasi-static mooring model. Three platforms representing the principal topologies (spar, semisubmersible and tension-leg platform) were assumed to be installed at the same 200 m depth location in the Irish coast. For each platform, the fatigue and ultimate loads were computed with an integrated floating wind turbine simulation code using both, a quasi-static and a fully dynamic moorings model. More than 3500 simulations for each platform and mooring model were launched and post-processed according to the IEC 61400-3 guideline in an exercise similar to what a certification entity may require to an offshore wind turbine designer. The results showed that the impact of mooring dynamics in both fatigue and ultimate loads increases as elements located closer to the platform are evaluated; the blade and the shaft loads are only slightly modified by the mooring dynamics in all the platform designs; the tower base loads can be significantly affected depending on the platform concept; and the mooring lines tensions strongly depend on the lines dynamics, both in fatigue and extreme loads for all the platform concepts evaluated.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7609795IRPWINDDANMARKS TEKNISKE UNIVERSITETEuropean Community's IRPWind project
Government of SpainTRA2013-41096-PUnspecifiedUnspecifiedPaisaje de energías: conocimiento estético en el enfoque ambiental del proyecto

More information

Item ID: 38827
DC Identifier: http://oa.upm.es/38827/
OAI Identifier: oai:oa.upm.es:38827
DOI: 10.1002/we.2064
Official URL: http://onlinelibrary.wiley.com/doi/10.1002/we.2064/full
Deposited by: Memoria Investigacion
Deposited on: 27 Jun 2017 07:34
Last Modified: 31 May 2018 22:30
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