ORBi: Lee Young S. - Suppression of limit cycle oscillations with a nonlineart energy sink: theoretical basis

Reference : Suppression of limit cycle oscillations with a nonlineart energy sink: theoretical basis


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Aerospace & aeronautics engineering Engineering, computing & technology : Mechanical engineering
	To cite this reference:	http://hdl.handle.net/2268/18319

Title :	Suppression of limit cycle oscillations with a nonlineart energy sink: theoretical basis
Language :	English
Author, co-author :	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 [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
Publication date :	May-2006
Main document title :	47th AIAA Structural Dynamics and Materials Conference, Newport, 2006
Publisher :	American Institute of Aeronautics and Astronautics
On invitation :	No
Audience :	International
City :	Reston
Country :	VA
Event name :	47th AIAA Structural Dynamics and Materials Conference
Event date :	1 - 4 May 2006
Event organizer :	AIAA-2006-1849
Event place (city) :	Newport, Rhode Island
Event country :	USA
Keywords :	[en] Limit cycle oscillations ; high- performance aircraft ; structural damage
Abstract :	[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.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/18319

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	File	Commentary	Version	Size	Access
Open access	C18_2006_Newport_AIAA_1.pdf	No commentary	Publisher postprint	1.74 MB	View/Open

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