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Aeroelastic Design of the oLAF Reference Aircraft Configuration

Schulze, Matthias und Klimmek, Thomas und Torrigiani, Francesco und Wunderlich, Tobias F. (2021) Aeroelastic Design of the oLAF Reference Aircraft Configuration. Deutsche Luft- und Raumfahrtkongress (DLRK) 2021, 2021-08-31 - 2021-09-02, Bremen (virtuell). (eingereichter Beitrag)

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Kurzfassung

One of the main aims of the EU Flightpath 2050 is to significantly reducet he fuel consumption of upcoming designs for transport aircraft. To achieve this challenging goal, new technologies have to be investigated. In this context, the development of the 'optimally load adaptive aircraft' (oLAF) for a conventional design is one of the main goals of the DLR project oLAF. Since the lift-to-drag ration, the structural mass and the thrust specific fuel consumption are the main drivers of the aircraft's fuel consumption, an improvement in all three topics seems to be a promising approach to fulfill the intended aims of the European Union. That's why the design of the new oLAF configuration is equipped with a next generation three shaft geared turbofan engine with an ultra-high bypass-ration and an optimized aerodynamic performance combined with aggressive loadalleviation (LA) techniques to lighten the load-carrying structure of the aircraft significantly compared to a conventional state-of-the-art aircraft. Multiple design cycles with different degree of fidelity and LA approaches are planned to be performed within oLAF. At the current state of the project, three different designs are available. On the one hand, there is the more basic configuration of the overall aircraft design (OAD) further called 'oLAF_SLv1'. On the other hand, there are configurations with more mature aerodynamic characteristics further called the oLAF_ASv0 configuration as start design for a multidisciplinary-design-optimization (MDO) process and the 'oLAF_ASv1' as the optimized result of the MDO. All configurations have been analyzed and evaluated using the aeroelastic structural design tool cpacs-MONA. The optimized 'oLAF_ASv1' configuration has furthermore been checked on aeroelastic stability. Conclusively, the stiffness of the structural pylon model has been adapted to shift a hump-mode of the new generation engine to higher airspeeds, so that the instability occurs outside of the flight envelope.

elib-URL des Eintrags:https://elib.dlr.de/143642/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Aeroelastic Design of the oLAF Reference Aircraft Configuration
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Schulze, MatthiasMatthias.Schulze (at) dlr.dehttps://orcid.org/0000-0001-7172-7723NICHT SPEZIFIZIERT
Klimmek, ThomasThomas.Klimmek (at) dlr.dehttps://orcid.org/0000-0002-5573-7355NICHT SPEZIFIZIERT
Torrigiani, FrancescoFrancesco.Torrigiani (at) dlr.dehttps://orcid.org/0000-0003-1387-0825NICHT SPEZIFIZIERT
Wunderlich, Tobias F.Tobias.Wunderlich (at) dlr.dehttps://orcid.org/0000-0001-8829-7600NICHT SPEZIFIZIERT
Datum:1 September 2021
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:eingereichter Beitrag
Stichwörter:cpacs-MONA, aeroelastic design, load alleviation, parametric modelling, OAD, MDO, oLAF, CPACS
Veranstaltungstitel:Deutsche Luft- und Raumfahrtkongress (DLRK) 2021
Veranstaltungsort:Bremen (virtuell)
Veranstaltungsart:nationale Konferenz
Veranstaltungsbeginn:31 August 2021
Veranstaltungsende:2 September 2021
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 - Virtuelles Flugzeug und Validierung
Standort: Braunschweig , Göttingen , Hamburg
Institute & Einrichtungen:Institut für Aeroelastik > Lastanalyse und Entwurf
Institut für Systemarchitekturen in der Luftfahrt > Flugzeugentwurf und Systemintegration
Institut für Aerodynamik und Strömungstechnik > Transportflugzeuge
Hinterlegt von: Schulze, Matthias
Hinterlegt am:11 Okt 2021 09:54
Letzte Änderung:24 Apr 2024 20:43

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