Numerical Estimation of Fatigue Life of Wind Turbines due to Shadow Effect

Palle Thoft-Christensen, Ronnie Pedersen, Søren R.K. Nielsen

    Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

    Abstract

    The influence of tower design on damage accumulation in up-wind turbine blades during tower passage is discussed. The fatigue life of a blade is estimated for a tripod tower configuration and a standard mono-tower. The blade stresses are determined from a dynamic mechanical model with a delay effect included in the normal coefficient used to compute the transverse load. Furthermore, the rotational effect of the turbulence spectrum is included in the model. The proposed tripod configuration of the tower limits the damage accumulation in the turbine blades significantly when compared to the fatigue of a blade from a monotower wind turbine.

    OriginalsprogEngelsk
    TitelSafety, Reliability and Risk of Structures, Infrastructures and Engineering Systems : Proceedings of the tenth International Conference on Structural Safety and Reliability (ICOSSAR2009), Osaka, Japan, 13-17 September
    RedaktørerHitoshi Futura, Dan M. Frangopol, Masanobu Shinozuka, Michiyuki Hirokane
    ForlagCRC Press
    Publikationsdato2009
    Sider153-159
    ISBN (Elektronisk)9780415475570
    StatusUdgivet - 2009
    BegivenhedInternational Conference on Structural Safety and Reliability - Osaka, Japan
    Varighed: 13 sep. 200917 sep. 2009
    Konferencens nummer: 10

    Konference

    KonferenceInternational Conference on Structural Safety and Reliability
    Nummer10
    Land/OmrådeJapan
    ByOsaka
    Periode13/09/200917/09/2009

    Bibliografisk note

    Udgivelsesåret er 2009. I Proceedings er der ved en fejl trykt år 2010.

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