Application of two passive strategies on the load mitigation of large offshore wind turbines

摘要

Thisstudypresentsthenumericalresultsoftwopassivestrategiestoreducethesupportstructureloadsofalargeoffshorewindturbine.Inthefirstapproach,anomnidirectionaltunedmassdamperisdesignedandimplementedinthetowertoptoalleviatethestructuralvibrations.Inthesecondapproach,aviscousfluiddampermodelwhichisdiagonallyattachedtothetowerattwopointsisdeveloped.Aeroelasticsimulationsareperformedfortheoffshore10MWINNWIND.EUreferencewindturbinemountedonajacketstructure.Lifetimedamageequivalentloadsareevaluatedatthetowerbaseandcomparedwiththoseforthereferencewindturbine.Theresultsshowthattheintegrateddesigncanextendthelifetimeofthesupportstructure...