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Aeroelastic optimization of composite wind turbine blades using variable stiffness laminates

Ferede, Etana and Abdalla, M.M. and Gandhi, F. and van Bussel, G. and Dillinger, Johannes (2017) Aeroelastic optimization of composite wind turbine blades using variable stiffness laminates. In: AHS International - 73rd Annual Forum Proceedings, 73. AHS International. AHS International 2017 - 73rd Annual Forum & Technology Display, 09.-11. Mai 2017, Fort Worth, Texas. ISSN 15522938

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Official URL: https://vtol.org/store/product/aeroelastic-optimization-of-composite-wind-turbine-blades-using-variable-stiffness-laminates-12141.cfm

Abstract

A variable stiffness composite optimization framework for wind turbine rotor blades is presented. The framework consists of a multi-fidelity approach for wind turbine rotor analysis, where both structural and aerodynamic constraints are considered during the optimization. The potential of twist coupled blades to regulate the power on stall controlled wind turbines is investigated by exploiting the characteristic of unbalanced laminates to induce twist coupling. A complete stiffness variation along the blade span is considered during the optimization, while using the cost of energy as the objective function. Results show that unbalanced laminates provide a greater capabilitiy (compared to balanced laminates) to reduce the cost of energy of stall controlled wind turbines by exploiting extention-twist and bend-twist coupling of composite blades.

Item URL in elib:https://elib.dlr.de/114983/
Document Type:Conference or Workshop Item (Speech)
Title:Aeroelastic optimization of composite wind turbine blades using variable stiffness laminates
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ferede, Etanaaerospace structures, delft university of technologyUNSPECIFIED
Abdalla, M.M.aerospace structures, delft university of technologyUNSPECIFIED
Gandhi, F.UNSPECIFIEDUNSPECIFIED
van Bussel, G.UNSPECIFIEDUNSPECIFIED
Dillinger, Johannesjohannes.dillinger (at) dlr.dehttps://orcid.org/0000-0002-7522-7555
Date:2017
Journal or Publication Title:AHS International - 73rd Annual Forum Proceedings
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:73
Publisher:AHS International
ISSN:15522938
Status:Published
Keywords:aeroelastic tailoring, bend twist coupling, variable stiffness
Event Title:AHS International 2017 - 73rd Annual Forum & Technology Display
Event Location:Fort Worth, Texas
Event Type:international Conference
Event Dates:09.-11. Mai 2017
Organizer:American Helicopter Society (AHS) International
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design
Deposited By: Dillinger, Johannes
Deposited On:09 Nov 2017 08:42
Last Modified:09 Nov 2017 08:42

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