Implementation of the Generalized Brazier Effect in Analysis of Wind Turbine Blades

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

Resumé

As wind turbine blades are getting longer and more slender, new failure modes occur and these may be related to the non-linear geometric Brazier effect1,2,3, where the bending moments ovalize the thin-walled cross-sections. For general cross-sections the torsional moments have a similar effect. The combined effect is denoted the general Brazier effect, and it is described in an accompanying paper. The stresses caused by the generalized Brazier effect are directed perpendicular to the beam axis, and this may have a large influence on the fatigue life of composite structure. The generalized Brazier effect can be calculated in an approximate way which enables to add the additional non-linear geometric effects to the results from the wind simulation. This has been described in the accompanying paper, and in this paper focus will be on the practical implementation in a Finite Element program. The accuracy of the proposed method has been illustrated on a wind turbine blade from SSP Technology A/S.
OriginalsprogEngelsk
TitelProceedings of 29th Nordic Seminar on Computational Mechanics – NSCM29
RedaktørerRagnar Larsson
Antal sider4
Udgivelses stedGothenburg
ForlagChalmers tekniska högskola
Publikationsdato2016
StatusUdgivet - 2016
BegivenhedThe 29th Nordic Seminar on Computational Mechanics NSCM-29 - Chalmers University of Technology, Gothenburg, Sverige
Varighed: 26 okt. 201628 okt. 2016
Konferencens nummer: 29

Konference

KonferenceThe 29th Nordic Seminar on Computational Mechanics NSCM-29
Nummer29
LokationChalmers University of Technology
LandSverige
ByGothenburg
Periode26/10/201628/10/2016
NavnForskningsrapporter
Nummer4
Vol/bind2016
ISSN1652-8549

Fingerprint

Wind turbines
Turbomachine blades
Bending moments
Composite structures
Failure modes
Fatigue of materials

Emneord

  • Non-linear geometric effect
  • Brazier effect
  • Linearized method
  • Thin walled
  • Composite structures
  • Wind turbine blades

Citer dette

Lauridsen, P. R., Nikolajsen, J. Á., & Damkilde, L. (2016). Implementation of the Generalized Brazier Effect in Analysis of Wind Turbine Blades. I R. Larsson (red.), Proceedings of 29th Nordic Seminar on Computational Mechanics – NSCM29 Gothenburg: Chalmers tekniska högskola. Forskningsrapporter, Nr. 4, Bind. 2016
Lauridsen, Peter Riddersholm ; Nikolajsen, Jan Ánike ; Damkilde, Lars. / Implementation of the Generalized Brazier Effect in Analysis of Wind Turbine Blades. Proceedings of 29th Nordic Seminar on Computational Mechanics – NSCM29. red. / Ragnar Larsson. Gothenburg : Chalmers tekniska högskola, 2016. (Forskningsrapporter; Nr. 4, Bind 2016).
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Lauridsen, PR, Nikolajsen, JÁ & Damkilde, L 2016, Implementation of the Generalized Brazier Effect in Analysis of Wind Turbine Blades. i R Larsson (red.), Proceedings of 29th Nordic Seminar on Computational Mechanics – NSCM29. Chalmers tekniska högskola, Gothenburg, Forskningsrapporter, nr. 4, bind 2016, The 29th Nordic Seminar on Computational Mechanics NSCM-29, Gothenburg, Sverige, 26/10/2016.

Implementation of the Generalized Brazier Effect in Analysis of Wind Turbine Blades. / Lauridsen, Peter Riddersholm; Nikolajsen, Jan Ánike; Damkilde, Lars.

Proceedings of 29th Nordic Seminar on Computational Mechanics – NSCM29. red. / Ragnar Larsson. Gothenburg : Chalmers tekniska högskola, 2016. (Forskningsrapporter; Nr. 4, Bind 2016).

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

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Lauridsen PR, Nikolajsen JÁ, Damkilde L. Implementation of the Generalized Brazier Effect in Analysis of Wind Turbine Blades. I Larsson R, red., Proceedings of 29th Nordic Seminar on Computational Mechanics – NSCM29. Gothenburg: Chalmers tekniska högskola. 2016. (Forskningsrapporter; Nr. 4, Bind 2016).