Reference : Reduced-order modeling of electrostatically-actuated micro-beams

	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Electrical & electronics engineering Engineering, computing & technology : Computer science Engineering, computing & technology : Mechanical engineering
	To cite this reference:	http://hdl.handle.net/2268/27093

Title :	Reduced-order modeling of electrostatically-actuated micro-beams
Language :	English
Author, co-author :	Durieu, Francois [Université de Liège - ULG > Département d'aérospatiale et mécanique > > >]
	Bruls, Olivier [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire des Systèmes Multicorps et Mécatroniques >]
	Rochus, Véronique [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >]
	Golinval, Jean-Claude [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >]
	Serandour, Guillaume [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures > >]
Publication date :	2008
Main document title :	Proceedings of the 6th EUROMECH Nonlinear Dynamics Conference (ENOC)
Pages :	1-6
Audience :	International
Event name :	6th EUROMECH Nonlinear Dynamics Conference (ENOC)
Event date :	June, 30–July, 4 2008
Event place (city) :	Saint Petersburg
Event country :	Russia
Keywords :	[en] Model reduction, electromechanical coupling, nonlinear dynamics, MEMS
Abstract :	[en] This paper addresses the compact modeling of MEMS devices with nonlinear electromechanical forces. Ideally, the reduced-order model should only involve one or two generalized coordinates. We show that a projection method based on the first eigenmode of the linearized unactuated structure is a good choice in terms of simplicity and accuracy. To take into account the influence of distributed electrostatic forces, it is necessary to approximate the nonlinear force in terms of the reduced coordinate. It is shown that a Pad´e approximation of order 2 is very attractive in terms of accuracy and numerical efficiency.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/27093

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