Article (Scientific journals)
Passive non linear TET and its application to vibration absorption: a review
Lee, Y. S.; Vakakis, Alexander F.; Bergman, L. A. et al.
2008In Proceedings of the Institution of Mechanical Engineers. Part K, Journal of Multi-body Dynamics, 222, p. 77-134
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Keywords :
passive non-linear targeted energy transfer; vibration absorbtion
Abstract :
[en] This review paper discusses recent efforts to passively move unwanted energy from a primary structure to a local essentially non-linear attachment (termed a non-linear energy sink) by utilizing targeted energy transfer (TET) (or non-linear energy pumping). First, fundamental theoretical aspects of TET will be discussed, including the essentially non-linear governing dynamical mechanisms for TET. Then, results of experimental studies that validate the TET phenomenon will be presented. Finally, some current engineering applications of TET will be discussed. The concept of TET may be regarded as contrary to current common engineering practise, which generally views non-linearities in engineering systems as either unwanted or, at most, as small perturbations of linear behaviour. Essentially non-linear stiffness elements are intentionally introduced in the design that give rise to new dynamical phenomena that are very beneficial to the design objectives and have no counterparts in linear theory. Care, of course, is taken to avoid some of the unwanted dynamic effects that such elements may introduce, such as chaotic responses or other responses that are contrary to the design objectives.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Mechanical engineering
Author, co-author :
Lee, Y. S.;  University of Illiois at Urbana-Champaign > Department of Aerospace Engineering,
Vakakis, Alexander F.;  National Technical University of Athens > School of AppliedMathematical and Physical Sciences
Bergman, L. A.;  University of Illiois at Urbana-Champaign > Department of Aerospace Engineering,
McFarland, D. M.;  University of Illiois at Urbana-Champaign > Department of Aerospace Engineering,
Kerschen, Gaëtan  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Nucera, F.;  Mediterranean University, Reggio Calabria, Italy > Department ofMechanics andMaterials,
Tsakirtzis, S.;  National Technical University of Athens > School of AppliedMathematical and Physical Sciences,
Language :
English
Title :
Passive non linear TET and its application to vibration absorption: a review
Publication date :
2008
Journal title :
Proceedings of the Institution of Mechanical Engineers. Part K, Journal of Multi-body Dynamics
ISSN :
1464-4193
Publisher :
Professional Engineering Publishing
Special issue title :
invited review paper
Volume :
222
Pages :
77-134
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 10 August 2009

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