Efficient Beam-Type Structural Modeling of Rotor Blades

Philippe Couturier, Steen Krenk

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Abstract

The present paper presents two recently developed numerical formulations which enable accurate representation of the static and dynamic behaviour of wind turbine rotor blades using little modeling and computational effort. The first development consists of an intuitive method to extract fully coupled six by six cross-section stiffness matrices with limited meshing effort. Secondly, an equilibrium based beam element accepting directly the stiffness matrices and accounting for large variations in geometry and material along the blade is presented. The novel design tools are illustrated by application to a composite section with bend-twist coupling and a real wind turbine blade.
Original languageEnglish
Title of host publicationProceedings of the EWEA Annual Event and Exhibition 2015
Number of pages8
PublisherEuropean Wind Energy Association (EWEA)
Publication date2015
Publication statusPublished - 2015
EventEWEA Annual Conference and Exhibition 2015 - Paris, France
Duration: 17 Nov 201520 Nov 2015

Conference

ConferenceEWEA Annual Conference and Exhibition 2015
CountryFrance
CityParis
Period17/11/201520/11/2015

Bibliographical note

Paper for poster presentation

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