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Global Aero-Structural Design Optimization of More Flexible Wings for Commercial Aircraft

Wunderlich, Tobias und Dähne, Sascha und Reimer, Lars und Schuster, Andreas und Brodersen, Olaf (2020) Global Aero-Structural Design Optimization of More Flexible Wings for Commercial Aircraft. In: AIAA Aviation 2020 Forum. AIAA AVIATION 2020 Forum, Virtual Event, 2020, 2020-06-15 - 2020-06-19, Virtuelle Konferenz. doi: 10.2514/6.2020-3170. ISBN 978-162410598-2.

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Offizielle URL: https://arc.aiaa.org/doi/abs/10.2514/6.2020-3170

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 CAD model, flight performance under transonic flight conditions and maneuver loads are computed by solving the Reynolds-averaged Navier--Stokes equations (RANS). Structural mass and elastic characteristics of the wing are determined from structural sizing of the composite wing box for essential maneuver load cases using computational structural mechanics. Static aeroelastic effects are considered in all flight conditions by direct iterative coupling between the flow solver and the structural mechanics solver. Active maneuver load alleviation (MLA) is integrated in the process by a simplified modeling of control surface deflections by using a mesh deformation technique. Landing gear and control surface integration constraints were added compared to previous versions of the optimization process. Global aero-structural wing optimizations are successfully performed 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. To reduce the CO2 emissions per passenger kilometer, the minimization of the combined fuel consumption for three typical flight missions represents the objective function. Wing optimizations are performed for variable and constant planform parameters as well as with and without consideration of MLA. A significant mass reduction of the optimized wing box is obtained with the more flexible wing concept, resulting in a drop in combined fuel consumption of about 3%. For wing optimizations with MLA the more flexible wing concept shows an additional reduction of the combined fuel consumption in the order of 2%. The more flexible wing concept results in optimized wing geometries with increased aspect ratio and reduced taper ratio.

elib-URL des Eintrags:https://elib.dlr.de/137743/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Global Aero-Structural Design Optimization of More Flexible Wings for Commercial Aircraft
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Wunderlich, Tobiastobias.wunderlich (at) dlr.dehttps://orcid.org/0000-0001-8829-7600NICHT SPEZIFIZIERT
Dähne, SaschaSascha.Daehne (at) dlr.dehttps://orcid.org/0000-0003-3497-3225NICHT SPEZIFIZIERT
Reimer, LarsLars.Reimer (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Schuster, AndreasAndreas.Schuster (at) dlr.dehttps://orcid.org/0000-0002-9919-9640NICHT SPEZIFIZIERT
Brodersen, OlafO.Brodersen (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Juni 2020
Erschienen in:AIAA Aviation 2020 Forum
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
DOI:10.2514/6.2020-3170
ISBN:978-162410598-2
Status:veröffentlicht
Stichwörter:multidisciplinary design optimization, wing design, wing optimization, aero-structural wing optimization, maneuver load alleviation, more flexibel wing, Composite wing box, MDO, RANS, FEM, MLA
Veranstaltungstitel:AIAA AVIATION 2020 Forum, Virtual Event, 2020
Veranstaltungsort:Virtuelle Konferenz
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:15 Juni 2020
Veranstaltungsende:19 Juni 2020
Veranstalter :AIAA
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Flugzeuge
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Aircraft Research
DLR - Teilgebiet (Projekt, Vorhaben):L - VicToria (alt)
Standort: Braunschweig
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik
Institut für Faserverbundleichtbau und Adaptronik > Funktionsleichtbau
Hinterlegt von: Wunderlich, Dr.-Ing. Tobias
Hinterlegt am:19 Nov 2020 07:47
Letzte Änderung:24 Apr 2024 20:39

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