DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Validation of a 20m wind turbine blade model

Willberg, Christian and Ravi, Rakesh and Rieke, Johannes and Heinecke, Falk (2021) Validation of a 20m wind turbine blade model. Energies, 14 (9). Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/en14092451. ISSN 1996-1073.

[img] PDF - Published version

Official URL: https://www.mdpi.com/1996-1073/14/9/2451


In the projects Smartblades and Smartblades 2 a full-scale 20m rotor blade for the NREL CART3 wind turbine was designed, built and tested. The rotor blade was intended to have a strong bending-torsion coupling. By means of the experiments, the proof for the technology in question was supposed to be provided. The experimental work was accompanied by simulations. The aim of the paper is to describe and publish a reference finite element model for the 20 m rotor blade. The validation procedure is presented as well as the modelling strategy and the limitations of the model. The finite element model is created using quadratic finite shell elements and quadratic solid elements. Different data sets were used for the validation. First the data of static test bench experiments was used. The validation comprises the comparison of global displacement and local strain measurements for various flap and edge bending tests as well as for torsion unit loading tests. Second the blades' eigenfrequencies and eigenvectors in a clamped and free-free scenario were used for validation. Third the mass distribution of the finite element and real blade was investigated. The paper provides the evaluated experimental data and all analysed scenarios as well as the corresponding finite element model in Abaqus, Ansys and Nastran and format as reference dataset.

Item URL in elib:https://elib.dlr.de/141791/
Document Type:Article
Title:Validation of a 20m wind turbine blade model
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Willberg, ChristianChristian.Willberg (at) dlr.dehttps://orcid.org/0000-0003-2433-9183
Ravi, RakeshUniversität Duisburg-EssenUNSPECIFIED
Rieke, JohannesNordex Energy GmbHUNSPECIFIED
Heinecke, Falkfalk.heinecke (at) dlr.dehttps://orcid.org/0000-0002-9299-4078
Journal or Publication Title:Energies
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
DOI :10.3390/en14092451
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Keywords:Validation; Wind turbine blade; Structure mechanics; FEM
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:Photovoltaics and Wind Energy
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Wind Energy
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Structural Mechanics
Deposited By: Willberg, Dr.-Ing. Christian
Deposited On:26 Apr 2021 08:56
Last Modified:10 May 2021 06:31

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.