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Limit cycle oscillations of aeroelastic systems with internal friction in the transonic domain - Experimental results

Kingsbury, Dallas W. and Agelostas, Anthony M. and Dietz, Guido and Mignolet, Marc P. and Liu, Danny D. and Schewe, Günter (2005) Limit cycle oscillations of aeroelastic systems with internal friction in the transonic domain - Experimental results. In: Proceedings - 2005 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference. 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference, 2005-04-18 - 2005-04-21, Austin, TX (USA).

Full text not available from this repository.

Abstract

This paper reports on the design, fabrication, and testing of a friction generating device connected to an airfoil to assess the effects of internal friction on limit cycle oscillations. Preliminary shaker testing in the ASU vibrations laboratory successfully validated the design. Full blown testing was then carried out at DLR in the DNW-TWG transonic wind tunnel and limit cycle oscillations with internal friction effects were observed and measured. These first measurements demonstrated a slight benefit of friction but also showed the subcritical nature of the observed limit cycle oscillations which is clarified. A different design is proposed for future tests that should lead to supercritical limit cycle oscillations.

Item URL in elib:https://elib.dlr.de/44446/
Document Type:Conference or Workshop Item (Paper)
Title:Limit cycle oscillations of aeroelastic systems with internal friction in the transonic domain - Experimental results
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kingsbury, Dallas W.Department of Mechanical and Aerospace Engineering, Arizona State UniversityUNSPECIFIED
Agelostas, Anthony M.Department of Mechanical and Aerospace Engineering, Arizona State UniversityUNSPECIFIED
Dietz, GuidoInstitut für AeroelastikUNSPECIFIED
Mignolet, Marc P.Department of Mechanical and Aerospace Engineering, Arizona State UniversityUNSPECIFIED
Liu, Danny D.Department of Mechanical and Aerospace Engineering, Arizona State UniversityUNSPECIFIED
Schewe, GünterInstitut für AeroelastikUNSPECIFIED
Date:2005
Journal or Publication Title:Proceedings - 2005 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Editors:
EditorsEmail
American Institute of Aeronautics and Astronautics, UNSPECIFIED
Status:Published
Keywords:supercritical airfoil, limit-cycle oscillation, transonic flutter
Event Title:46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference
Event Location:Austin, TX (USA)
Event Type:international Conference
Event Dates:2005-04-18 - 2005-04-21
Organizer:American Institute of Aeronautics and Astronautics
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):L - Flexible Aircraft (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Erdmann, Daniela
Deposited On:16 Aug 2006
Last Modified:27 Apr 2009 13:01

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