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Grupo de Estruturas Navais > 3.1 Resistência Última de Estruturas > Publicações
Yeter, B., Garbatov, Y. e Guedes Soares, C. (2014), “Fatigue damage analysis of a fixed offshore wind turbine supporting structure”, Developments in Maritime Transportation and Exploitation of Sea Resources, Guedes Soares, C. and López Peña F. (Eds.). Francis & Taylor Group, London, UK, pp. 415-424
The objective of this work is to analyse a fixed offshore wind turbine supporting structure, which involves an iterative procedure that encompasses the integration of modern sea, wind and current load and soil interaction prediction methods, finite element and fatigue analyses. A tripod structure designed to support a wind turbine of 5MW is analysed. The work performs structural analyses of the structural integrity of the supporting structure under various loading scenarios for different operational modes. Critical hotspot locations, which experience the most cumulative fatigue damage, are analysed based on FEM and the S-N fatigue approach. A two-parameter Weibull distribution is used to fit the long-term statistical distribution of hotspots stress ranges of representative environmental conditions in operational condition of the wind turbine.
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