Reference : Tuning methodology of nonlinear vibration absorbers coupled to nonlinear mechanical syst...

	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Aerospace & aeronautics engineering
	To cite this reference:	http://hdl.handle.net/2268/119279

Title :	Tuning methodology of nonlinear vibration absorbers coupled to nonlinear mechanical systems
Language :	English
Author, co-author :	Viguié, R. [ > > ]
	Kerschen, Gaëtan [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
Publication date :	2011
Main document title :	Proceedings of the ASME International Design Engineering Technical Conferences
On invitation :	No
Audience :	International
City :	Washington
Country :	USA
Event name :	ASME International Design Engineering Technical Conferences
Event date :	August 2011
Event place (city) :	Washington
Event country :	USA
Abstract :	[en] A large body of literature exists regarding linear and nonlinear dynamic absorbers, but the vast majority of it deals with linear primary structures. However, nonlinearity is a frequent occurrence in engineering applications. Therefore, the present paper focuses on the mitigation of vibrations of nonlinear primary systems using nonlinear dynamic absorbers. Because most existing contributions about their design rely on extensive parametric studies, which are computationally demanding, or on analytic methods, which may be limited to small-amplitude motions, this study proposes a tuning procedure which is computationally tractable and can treat strongly nonlinear regimes of motion. The proposed methodology relies on a frequency-energy based approach followed by bifurcation analysis. The results are illustrated using a one-degree-of-freedom primary system, which can, for instance, represent the vibrations of a specific mode of a multi-degree-of-freedom structure.
Permalink :	http://hdl.handle.net/2268/119279

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