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DESIGN OF STRUCTURE OF TENSION LEG PLATFORM FOR 6 MW OFFSHORE WIND TURBINE BASED ON FEM ANALYSIS

Abstract

The article presents the calculation and design stages of the TLP platform serving as a supporting construction of a 6 MW offshore wind turbine. This platform is designed to anchor at sea at a depth of 60 m. The authors presented the method of parameterization and optimization of the hull geometry. For the two selected geometry variants, the load and motion calculations of the platform subjected to wind, wave and current under 50-year storm conditions were performed. The maximum load on the structure was determined in these extreme storm conditions. For these loads, the MES calculation of the designed platform was performed for the selected variant. Authors have presented a method for calculating maximum wind, wave and current stresses on the structure during the worst storm in the past 50 years. For these loads the MES endurance calculations of the designed platform were made. Based on the results of these calculations, the required structural changes and recalculations have been made in succession to the structural design of the platform, which meets the design requirements and has the required ad hoc strength. The article contains stress analysis in „difficult” nodes of constructions and discusses ways of solving their problems. The work is part of the WIND-TU-PLA project from the NCBR Research Agreement (Agreement No. MARTECII / 1/2014).

Keywords:

offshore wind turbine, TLP, support structure, FEM

Details

Issue
Vol. 24 No. S1(93) (2017)
Section
Latest Articles
Published
23-05-2017
DOI:
https://doi.org/10.1515/pomr-2017-0043
Licencja:
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Open Access License

This journal provides immediate open access to its content under the Creative Commons BY 4.0 license. Authors who publish with this journal retain all copyrights and agree to the terms of the CC BY 4.0 license.

 

Authors

  • Jędrzej Żywicki

    Gdansk University of Technology
  • Paweł Dymarski

    Gdansk University of Technology
  • Ewelina Ciba

    Gdansk University of Technology
  • Czesław Dymarski

    Gdansk University of Technology

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