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A steady aeroelastic analysis of an unmanned combat aircraft vehicle conceptual design

Voß, Guido and Cumnuantip, Sunpeth and Neumann, Jens (2011) A steady aeroelastic analysis of an unmanned combat aircraft vehicle conceptual design. In: Conference Proceedings. 29th AIAA Applied Aerodynamcics Conference, 27.-30. Juni 2011, Honolulu, Hawaii, USA.

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Unmanned combat aircraft vehicles (UCAV) are an increasingly important part of air forces as an addition to conventional manned combat aircraft vehicles. UCAVs are deployed in the direct fight with weapons as well as a recon drone in combat zones. An unmanned system has a great advantage against the conventional aircraft since the system can perform an extreme flight manoeuvre which is not possible by the manned system due to the physical limitation of the pilot. Various UCAV configurations exist. Although, in this research work an UCAV with a blended wing or flying wing configuration is concerned. The reference aircraft is the DLR F17 model in real size which is developed within the DLR UCAV2010 project. It corresponds to the NASA-SACCON model. The F17-model is a blended wing body configuration in lambda-wing design with a half span of y = 6.15 m and a wing sweep angle of γ = 53°. The design is driven by the mission requirement. However, the unique aircraft configuration of the F17 leads to a special aerodynamic phenomenon of different vortex systems. This phenomenon influences the aircraft performance both for the aerodynamic discipline e.g. cp distribution and for the aeroelastic point of view, particularly control surface efficiency. This research work represents the investigation of these effects. The work of this paper shows the first study of the effect on the aircraft aerodynamic performance. The investigation of aerodynamic coefficients distribution and vortex system generation is performed both for a rigid body aircraft and an elastic aircraft. Differences of the results are discussed. Finally as part of the investigation with the elastic aircraft, the parametrical FEM structure setup is also outlined.

Item URL in elib:https://elib.dlr.de/72848/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:A steady aeroelastic analysis of an unmanned combat aircraft vehicle conceptual design
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Voß, Guidoguido.voss (at) dlr.deUNSPECIFIED
Cumnuantip, Sunpethsunpeth.cumnuantip (at) dlr.deUNSPECIFIED
Neumann, Jensjens.neumann (at) dlr.deUNSPECIFIED
Journal or Publication Title:Conference Proceedings
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:UCAV, elastic deformation, SACCON
Event Title:29th AIAA Applied Aerodynamcics Conference
Event Location:Honolulu, Hawaii, USA
Event Type:international Conference
Event Dates:27.-30. Juni 2011
Organizer:American Institute of Aeronautics and Astronautics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Erdmann, Daniela
Deposited On:15 Dec 2011 16:05
Last Modified:27 Jul 2012 16:05

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