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Structural Optimization of an Aeroelastic Wind Tunnel Model For Unsteady Transonic Testing

Dillinger, Johannes and Meddaikar, Muhammad Yasser and Lepage, Arnaud and Fabbiane, Nicolo (2021) Structural Optimization of an Aeroelastic Wind Tunnel Model For Unsteady Transonic Testing. Aerospace Europe Conference 2021, 23. Nov. - 26. Nov. 2021, Warschau, Polen.

Full text not available from this repository.

Abstract

Within the scope of the "DLR - ONERA Partnership in Transport Aircraft Research", a common research program (CRP) called FIGURE - Flexible Wind Gust Response - was launched to investigate means of passive load control in the transonic regime. To this end, two aeroelastic tailoring methodologies, independently developed at ONERA and DLR, were applied to a common model geometry. A choice was made in favor of the publicly available NASA Common Research Model (CRM) wing, featuring a comprehensive database with respect to geometry, as well as analytical and experimental research results. The span of the wing half to be investigated was set to 0.55 m, limited by the test section dimensions. While wind tunnel testing was part of ONERA's workshare, the model building was performed by DLR. This report at hand focusses on the structural, aeroelastic optimization of the DLR wing. It is based on an optimization framework developed and constantly being enhanced and extended at the DLR - Institute of Aeroelasticity (DLR-AE). The report describes the consideration of different structural objective functions, structural and aeroelastic constraint combinations, design field considerations, as well as the application of an aero load correction applied in the course of the optimization. The final results consist of the selection of an appropriate fiber type, optimized fiber layers represented as stacking sequence tables for the upper and lower wing skins, and the corresponding optimized jig twist distribution, required for manufacturing the lamination molds; in summary, all data required to start the construction of the wind tunnel model.

Item URL in elib:https://elib.dlr.de/146680/
Document Type:Conference or Workshop Item (Speech)
Title:Structural Optimization of an Aeroelastic Wind Tunnel Model For Unsteady Transonic Testing
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
Lepage, Arnaudarnaud.lepage (at) onera.frUNSPECIFIED
Fabbiane, Nicolonicolo.fabbiane (at) onera.frUNSPECIFIED
Date:23 November 2021
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:composite optimization, aeroelasticity, passive load alleviation
Event Title:Aerospace Europe Conference 2021
Event Location:Warschau, Polen
Event Type:international Conference
Event Dates:23. Nov. - 26. Nov. 2021
Organizer:Council of European Aerospace Societies, CEAS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Structural Materials and Design
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design
Deposited By: Dillinger, Johannes
Deposited On:02 Dec 2021 16:14
Last Modified:02 Dec 2021 16:14

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