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Design and wind tunnel test of an actively controlled flexible wing

Krüger, Wolf R. and Dillinger, Johannes and Meddaikar, Muhammad Yasser and Lübker, Jannis and Tang, Martin and Meier, Tobias and Böswald, Marc and Soal, Keith Ian and Pusch, Manuel and Kier, Thiemo (2019) Design and wind tunnel test of an actively controlled flexible wing. In: Proc. International Forum on Aeroelasticity and Strucutural Dynamics 2019. International Forum on Aeroelasticity and Structural Dynamics, 10.-13. Juni 2019, Savannah, GA (USA).

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Abstract

The reduction of flight loads has the potential to reduce structural mass in wing design and to improve passenger comfort. In the DLR project KonTeKst, an actively controlled wing was designed, manufactured and tested in a wind tunnel experiment. The motivation of the activity was to validate methods for the design of combined passive and active load alleviation techniques, including aeroelastic tailoring and active load control. In addition, the experimental activities provided an opportunity to improve and validate modal identification techniques. The wind tunnel model is a flexible composite wing of 1.6 meter (half-) span, with three flaps used for load control. The control design uses H2 optimal blending techniques for input and output. The control strategy is capable of accounting for failure of one flap without critically losing performance. The wind tunnel experiment was performed in a wind tunnel with a maximum speed of 50 m/s. The paper will give an overview of the numerical design activities for wing and load control, of wing design and manufacturing, including the selection and installation of sensors and actuators, and of the wind tunnel set up including the actuation of the wing, data acquisition and online analysis, as well as selected results.

Item URL in elib:https://elib.dlr.de/127970/
Document Type:Conference or Workshop Item (Speech)
Title:Design and wind tunnel test of an actively controlled flexible wing
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Krüger, Wolf R.Wolf.Krueger (at) dlr.dehttps://orcid.org/0000-0002-7949-1169
Dillinger, JohannesJohannes.Dillinger (at) dlr.dehttps://orcid.org/0000-0002-7522-7555
Meddaikar, Muhammad YasserMuhammad.Meddaikar (at) dlr.dehttps://orcid.org/0000-0001-9580-7023
Lübker, JannisJannis.Luebker (at) dlr.deUNSPECIFIED
Tang, MartinMartin.Tang (at) dlr.deUNSPECIFIED
Meier, TobiasTobias.Meier (at) dlr.deUNSPECIFIED
Böswald, MarcMarc.Boeswald (at) dlr.deUNSPECIFIED
Soal, Keith IanKeith.Soal (at) dlr.dehttps://orcid.org/0000-0002-5132-6823
Pusch, ManuelManuel.Pusch (at) dlr.deUNSPECIFIED
Kier, ThiemoThiemo.Kier (at) dlr.deUNSPECIFIED
Date:June 2019
Journal or Publication Title:Proc. International Forum on Aeroelasticity and Strucutural Dynamics 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Wind tunnel testing, aeroelastic model, load control
Event Title:International Forum on Aeroelasticity and Structural Dynamics
Event Location:Savannah, GA (USA)
Event Type:international Conference
Event Dates:10.-13. Juni 2019
Organizer:AIAA
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 - Flight Physics, L - Systems and Cabin
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: Krüger, Prof. Dr.-Ing. Wolf R.
Deposited On:02 Jul 2019 14:33
Last Modified:31 Jul 2019 20:25

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