Reliability-Based Calibration of Partial Safety Factors for Wind Turbine Blades

Henrik Stensgaard Toft, Kim Branner, John Dalsgaard Sørensen, Peter Berring

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

Abstrakt

The reliability of a wind turbine blade can be estimated using a response surface technique, the First Order Reliability Method (FORM) and Monte Carlo simulation. The response surface is here estimated based on nonlinear finite element analysis by which nonlinear failure modes due to e.g. buckling can be taken into account. Stochastic models for the material properties and the load-effect are formulated in order to take physical, model and statistical uncertainties into account. The blade fails due to buckling of the main spar cap which results in high stresses in the transverse direction of the unidirectional laminas. For this failure mode the reliability is estimated along the centreline of the main spar cap. The results show significant variations in the reliability along the blade length.
OriginalsprogEngelsk
TitelEWEA 2011 Brussels : Europe's Premier Wind Energy Event : scientific proceedings
Antal sider4
ForlagThe European Wind Energy Association
Publikationsdato2011
StatusUdgivet - 2011
BegivenhedEAWA 2011 Brussels : EWEA annual event - Brussels, Belgien
Varighed: 14 mar. 201117 mar. 2011

Konference

KonferenceEAWA 2011 Brussels : EWEA annual event
LandBelgien
ByBrussels
Periode14/03/201117/03/2011

Bibliografisk note

Elektronisk opført abstract, før udgivelse af publikation.

Emneord

  • Stochastic Models
  • Partial Safety Factors
  • Composite Materials
  • Wind Turbine Blades

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  • EAWA 2011 Brussels : EWEA annual event

    Henrik Stensgaard Toft (Oplægsholder)

    16 mar. 2011

    Aktivitet: Foredrag og mundtlige bidragForedrag og præsentationer i privat eller offentlig virksomhed

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