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Design and optimization of an aeroservoelastic wind tunnel model

Dillinger, Johannes and Meddaikar, Muhammad Y. and Lübker, Jannis and Pusch, Manuel and Kier, Thiemo (2019) Design and optimization of an aeroservoelastic wind tunnel model. In: International Forum on Aeroelasticity and Structural Dynamics 2019, IFASD 2019. IFASD 2019 - International Forum on Aeroelasticity and Structural Dynamics, 10.-13. Juni 2019, Savannah, GA (USA).

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Official URL: http://ifasd2019.utcdayton.com/


Combining passive and active load alleviation techniques, this paper presents the design, optimization, manufacturing and update of a flexible composite wind tunnel model. 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 in a first step. 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 complemented most efficiently with 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. Based on the dynamic identification of the model the finite element representation could be updated to conform to the measured eigenfrequencies. Eventually, a wind tunnel test campaign was conducted in November 2018, results of which are examined in separate reports.

Item URL in elib:https://elib.dlr.de/133658/
Document Type:Conference or Workshop Item (Speech)
Title:Design and optimization of an aeroservoelastic wind tunnel model
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Dillinger, Johannesjohannes.dillinger (at) dlr.dehttps://orcid.org/0000-0002-7522-7555
Meddaikar, Muhammad Y.Muhammad.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:June 2019
Journal or Publication Title:International Forum on Aeroelasticity and Structural Dynamics 2019, IFASD 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:composite optimization, aeroservoelasticity, wind tunnel testing
Event Title:IFASD 2019 - International Forum on Aeroelasticity and Structural Dynamics
Event Location:Savannah, GA (USA)
Event Type:international Conference
Event Dates:10.-13. Juni 2019
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 > Loads Analysis and Aeroelastic Design
Deposited By: Dillinger, Johannes
Deposited On:24 Feb 2020 08:41
Last Modified:23 Feb 2022 13:20

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