ORBi: Dimitriadis Grigorios - Experimental Validation of the Constant Level method for Identification of Nonlinear Multi Degree of Freedom Systems

Reference : Experimental Validation of the Constant Level method for Identification of Nonlinear Mul...


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Mechanical engineering
	To cite this reference:	http://hdl.handle.net/2268/24704

Title :	Experimental Validation of the Constant Level method for Identification of Nonlinear Multi Degree of Freedom Systems
Language :	English
Author, co-author :	Dimitriadis, Grigorios [Université de Liège - ULg > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale >]
Publication date :	Sep-2001
Main document title :	Proceedings of the 14th International Congress on Condition Monitoring and Diagnostic Engineering Management
Editor :	Starr, A. G.
	Rao, R. B. K. N.
Publisher :	Elsevier Science
Pages :	935-942
On invitation :	No
Audience :	International
ISBN :	0 08 0440363
City :	Oxford
Country :	United Kingdom
Event name :	14th International Congress on Condition Monitoring and Diagnostic Engineering Management
Event date :	du 4 eptembre 2001 au 6 septembre 2001
Event organizer :	COMADEM International
Event place (city) :	Manchester
Event country :	United Kingdom
Keywords :	[en] Nonlinear systems ; system identification ; multi degree-of-freedom systems ; bilinear stiffness ; cubic stiffness ; Condition Monitoring
Abstract :	[en] System identification methods for nonlinear dynamical systems could find uses in many applications such as condition monitoring, finite element model validation and stability determination. The effectiveness of existing nonlinear system identification techniques is limited by various factors such as the complexity of the system under investigation and the type of nonlinearities present. In this work, the Constant Level Identification approach, which can identify multi degree-of-freedom systems featuring any type of nonlinear function, including discontinuous functions, is validated experimentally. The method is shown to yield accurate identifications of an experimental dynamical system featuring two types of stiffness nonlinearity. The full equations of motion are accurately extracted, even in the presence of a discontinuous nonlinearity.
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/2268/24704

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