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Multi-frequency passive non-linear targeted energy transfers in systems of couples oscillators
Tsakirtzis, Stylianos; Panagopoulos, Panagiotis; Kerschen, Gaëtan et al.
2005In 5th GRACM International Congress on Computational Mechanics, Limassol, 2005
Peer reviewed
 

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Keywords :
Nonlinear coupled oscillators; passive energy transfer
Abstract :
[en] We study the dynamics of a system of coupled linear oscillators with a multi-DOF end attachment with essential (nonlinearizable) stiffness nonlinearities. We show numerically that the multi-DOF attachment with damping can passively absorb broadband energy from the linear system in a one-way, irreversible fashion, acting in essence as nonlinear energy sink (NES). Strong passive targeted energy transfer from the linear to the nonlinear subsystem is possible, over wide frequency and energy ranges. We numerically demonstrate that the topological structure of the periodic orbits in the frequency – energy plane of the underlying hamiltonian system greatly influences the strength of targeted energy transfer in the damped system, and governs to a great extent the overall transient damped dynamics. This work may be regarded as a contribution towards proving the efficacy the utilizing essentially nonlinear attachments as passive broadband boundary controllers.
Disciplines :
Mechanical engineering
Physics
Mathematics
Author, co-author :
Tsakirtzis, Stylianos;  National Technical University of Athens > School of Applied Mathematical and Physical Sciences
Panagopoulos, Panagiotis;  National Technical University of Athens > School of Applied Mathematical and Physical Sciences
Kerschen, Gaëtan  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Gendelman, Oleg;  Technion – Israel Institute of Technology > Faculty of Mechanical Engineering
Vakakis, Alexander F.;  National Technical University of Athens > School of Applied Mathematical and Physical Sciences
Bergman, Lawrence A.
Language :
English
Title :
Multi-frequency passive non-linear targeted energy transfers in systems of couples oscillators
Publication date :
June 2005
Event name :
5th GRACM International Congress on Computational Mechanics
Event place :
Limassol, Cyprus
Event date :
29 June – 1 July, 2005
Audience :
International
Main work title :
5th GRACM International Congress on Computational Mechanics, Limassol, 2005
Peer reviewed :
Peer reviewed
Available on ORBi :
since 17 August 2009

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