Reference : Suppression of limit cycle oscillations with a nonlineart energy sink: theoretical basis
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Aerospace & aeronautics engineering
Engineering, computing & technology : Mechanical engineering
http://hdl.handle.net/2268/18319
Suppression of limit cycle oscillations with a nonlineart energy sink: theoretical basis
English
Lee, Young S. [Department of Mechanical and Aerospace Engineering PO Box 30001 / MSC 3450 New Mexico State University Las Cruces, NM 88003-8001 > > > >]
Vakakis, Alexander F. [University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801 > > > >]
McFarland, D. Michael [University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801 > > > > >]
Bergman, Lawrence A. [University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801 > > > > >]
Kerschen, Gaëtan mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
May-2006
47th AIAA Structural Dynamics and Materials Conference, Newport, 2006
American Institute of Aeronautics and Astronautics
No
No
International
Reston
VA
47th AIAA Structural Dynamics and Materials Conference
1 - 4 May 2006
AIAA-2006-1849
Newport, Rhode Island
USA
[en] Limit cycle oscillations ; high- performance aircraft ; structural damage
[en] Limit cycle oscillations (LCOs) commonly require restrictions on the operation of high-
performance aircraft and have the potential to cause structural damage or failure. This paper summarizes recent theoretical findings on the application of passive and targeted nonlinear energy transfer (\nonlinear energy pumping") for the reduction or elimination of LCOs in self-excited systems. This NES has been used successfully to suppress LCOs of an elastically mounted, rigid airfoil in flow. The theoretical results are in agreement with experimental studies of a practical airfoil with an attached NES. These experimental results, presented in full in a separate paper, verify the capacity of the NES to reduce or even eliminate these undesired oscillations and to extend the operating speed range of the wing.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/18319

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