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Design and Optimization of an Aeroservoelastic Wind Tunnel Model

Dillinger, Johannes and Meddaikar, Muhammad Yasser and Lübker, Jannis and Pusch, Manuel and Kier, Thiemo (2020) Design and Optimization of an Aeroservoelastic Wind Tunnel Model. Fluids, 5, p. 35. Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/fluids5010035. ISSN 2311-5521.

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Official URL: https://www.mdpi.com/2311-5521/5/1/35

Abstract

Through the combination of passive and active load alleviation techniques, this paper presents the design, optimization, manufacturing, and update of a flexible composite wind tunnel model. In a first step, starting from the specification of an adequate wing and trailing edge flap geometry, passive, static aeroelastic stiffness optimizations for various objective functions have been performed. The second optimization step comprised a discretization of the continuous stiffness distributions, resulting in manufacturable stacking sequences. In order to determine which of the objective functions investigated in the passive structural optimization most efficiently complemented the projected active control schemes, the condensed modal finite element models were integrated in an aeroelastic model, involving a dedicated gust load alleviation controller. The most promising design was selected for manufacturing. The finite element representation could be updated to conform to the measured eigenfrequencies, based on the dynamic identification of the model. Eventually, a wind tunnel test campaign was conducted in November 2018 and results have been examined in separate reports.

Item URL in elib:https://elib.dlr.de/136470/
Document Type:Article
Title:Design and Optimization of an Aeroservoelastic Wind Tunnel Model
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
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
Pusch, Manuelmanuel.pusch (at) dlr.deUNSPECIFIED
Kier, Thiemothiemo.kier (at) dlr.deUNSPECIFIED
Date:17 March 2020
Journal or Publication Title:Fluids
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:5
DOI :10.3390/fluids5010035
Page Range:p. 35
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Series Name:Special Issue Flow and Aeroelastic Control
ISSN:2311-5521
Status:Published
Keywords:aeroservoelasticity,composite optimization,wind tunnel testing
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 (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Institute of System Dynamics and Control
Deposited By: Dillinger, Johannes
Deposited On:13 Oct 2020 09:29
Last Modified:13 Oct 2020 09:29

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