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Global aero-structural design optimization of composite wings with active manoeuvre load alleviation

Wunderlich, Tobias und Dähne, Sascha und Reimer, Lars und Schuster, Andreas (2022) Global aero-structural design optimization of composite wings with active manoeuvre load alleviation. CEAS Aeronautical Journal. Springer. doi: 10.1007/s13272-022-00585-3. ISSN 1869-5590.

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Offizielle URL: https://link.springer.com/article/10.1007/s13272-022-00585-3

Kurzfassung

In the scope of the DLR project VicToria (Virtual Aircraft Technology Integration Platform), an integrated process for aero-structural wing optimization based on high fidelity simulation methods is continuously developed and applied. Based upon a parametric geometry, flight performance under transonic flight conditions and manoeuvre loads are computed by solving the Reynolds-averaged Navier-Stokes equations. Structural mass and elastic characteristics of the wing are determined from structural sizing of the composite wing box for essential manoeuvre load cases using computational structural mechanics. Static aeroelastic effects are considered in all flight conditions and active manoeuvre load alleviation is integrated in the process. Global aero-structural wing optimizations are successfully performed for wings with and without active manoeuvre load alleviation. The active manoeuvre load alleviation is introduced with a simplified modelling of control surface deflections using a mesh deformation technique. The minimization of the fuel consumption for three typical flight missions represents the objective function. Wing optimizations are performed for variable and constant wing planform parameters as well as for wings with conventional composite wing box structure and for more flexible wings. The latter is accomplished by introducing modifications of the structural concept and the strain allowable. A significant mass reduction of the optimized wing box is obtained for wings with active manoeuvre load alleviation, resulting in a drop in fuel consumption of about 3%. For wing optimizations with the more flexible wing concept, the active manoeuvre load alleviation shows an additional reduction of the fuel consumption in the order of 2%. The wings with active manoeuvre load alleviation results in optimized wing geometries with increased aspect ratio and reduced taper ratio.

elib-URL des Eintrags:https://elib.dlr.de/186611/
Dokumentart:Zeitschriftenbeitrag
Titel:Global aero-structural design optimization of composite wings with active manoeuvre load alleviation
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iD
Wunderlich, Tobias*tobias.wunderlich (at) dlr.dehttps://orcid.org/0000-0001-8829-7600
Dähne, SaschaSascha.Daehne (at) dlr.dehttps://orcid.org/0000-0003-3497-3225
Reimer, LarsLars.Reimer (at) dlr.de
Schuster, AndreasAndreas.Schuster (at) dlr.dehttps://orcid.org/0000-0002-9919-9640
*DLR corresponding author
Datum:25 Mai 2022
Erschienen in:CEAS Aeronautical Journal
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
DOI:10.1007/s13272-022-00585-3
Verlag:Springer
ISSN:1869-5590
Status:veröffentlicht
Stichwörter:Multi-disciplinary design optimization (MDO) Aero-structural design optimization Wing optimization Wing design Active manoeuvre load alleviation Highly flexible wing Composite wing
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Effizientes Luftfahrzeug
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L EV - Effizientes Luftfahrzeug
DLR - Teilgebiet (Projekt, Vorhaben):L - Flugzeugtechnologien und Integration
Standort: Braunschweig
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Transportflugzeuge
Institut für Faserverbundleichtbau und Adaptronik > Funktionsleichtbau
Institut für Aerodynamik und Strömungstechnik > CASE, BS
Institut für Faserverbundleichtbau und Adaptronik > Strukturmechanik
Hinterlegt von: Wunderlich, Dr.-Ing. Tobias
Hinterlegt am:30 Mai 2022 07:33
Letzte Änderung:30 Mai 2022 07:33

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