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Dynamic Aeroelastic Stability Analyses of Parameterized Flying Wing Configurations

Schreiber, Philip and Vidy, Cyrille and Voß, Arne and Arnold, Jürgen and Mack, Christoph (2018) Dynamic Aeroelastic Stability Analyses of Parameterized Flying Wing Configurations. In: DLRK 2018 - Proceedings. DLRK 2018 - Deutscher Luft- und Raumfahrtkongress, 04.-06. Sep. 2018, Friedrichshafen, Deutschland.

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Abstract

Within this paper, different parameterized flying wing configurations are analysed regarding their dynamic aeroelastic stability behaviour with a special focus on the phenomenon of Body-Freedom Flutter (BFF). The highly swept flying wing configuration MULDICON-F is chosen as the reference configuration. Proceeding from MULDICON-F, geometrically derived configurations which distinguish themselves regarding their sweep angle and aspect ratio as well as mass moment of inertia variations, are generated. The modal and flutter characteristics of MULDICON-F and these variants are then compared. For MULDICON-F, a symmetric BFF mechanism with high rigid-body mode participations and an antisymmetric flutter mechanism are found at 1048m/s and 1589m/s for the reference flight point, respectively. In general, the BFF velocity is reduced with increasing aspect ratio, while a reverse trend can be observed for the sweep angle variations. Considering the mass moment of inertia modifications, a flutter velocity increase with increasing pitching moment of inertia, as well as decreasing rolling moment of inertia can be detected. Among the investigated parameters, the sweep angle is found to be the most sensitive parameter.

Item URL in elib:https://elib.dlr.de/124855/
Document Type:Conference or Workshop Item (Speech)
Title:Dynamic Aeroelastic Stability Analyses of Parameterized Flying Wing Configurations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schreiber, PhilipFachhochschule AachenUNSPECIFIED
Vidy, CyrilleAirbus Defence and SpaceUNSPECIFIED
Voß, ArneArne.Voss (at) dlr.dehttps://orcid.org/0000-0003-2266-7853
Arnold, JürgenJuergen.Arnold (at) dlr.deUNSPECIFIED
Mack, ChristophAirbus Defence and SpaceUNSPECIFIED
Date:September 2018
Journal or Publication Title:DLRK 2018 - Proceedings
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:aeroelasticity, flutter stability, body-freedom flutter, flying wing
Event Title:DLRK 2018 - Deutscher Luft- und Raumfahrtkongress
Event Location:Friedrichshafen, Deutschland
Event Type:national Conference
Event Dates:04.-06. Sep. 2018
Organizer:DGLR - Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberath e.V.
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 - Military Technologies
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Aeroelastic Simulation
Deposited By: Arnold, Dipl.-Ing. Jürgen
Deposited On:08 Jan 2019 13:49
Last Modified:08 Jan 2019 13:49

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