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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 (2019) Dynamic Aeroelastic Stability Analyses of Parameterized Flying Wing Configurations. DLRK 2019 - Deutscher Luft- und Raumfahrtkongress, 30. Sep. - 02.Okt. 2019, Darmstadt, Deutschland.

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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/134152/
Document Type:Conference or Workshop Item (Speech)
Title:Dynamic Aeroelastic Stability Analyses of Parameterized Flying Wing Configurations
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Schreiber, PhilipFachhochschule AachenUNSPECIFIEDUNSPECIFIED
Vidy, CyrilleAirbus Defence and SpaceUNSPECIFIEDUNSPECIFIED
Voß, ArneUNSPECIFIEDhttps://orcid.org/0000-0003-2266-7853143956399
Arnold, JürgenInstitut für AeroelastikUNSPECIFIEDUNSPECIFIED
Mack, ChristophAirbus Defence and SpaceUNSPECIFIEDUNSPECIFIED
Date:30 September 2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:aeroelasticity, flutter stability, body-freedom flutter, flying wing
Event Title:DLRK 2019 - Deutscher Luft- und Raumfahrtkongress
Event Location:Darmstadt, Deutschland
Event Type:national Conference
Event Dates:30. Sep. - 02.Okt. 2019
Organizer:DGLR - Deutsche Gesellschaft für Luft-und Raumfahrt
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 (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Aeroelastic Simulations
Deposited By: Arnold, Dipl.-Ing. Jürgen
Deposited On:24 Feb 2020 08:44
Last Modified:09 Oct 2023 08:57

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