Article (Scientific journals)
A principle of similarity for nonlinear vibration absorbers
Habib, Giuseppe; Kerschen, Gaëtan
2016In Physica D. Nonlinear Phenomena, 332, p. 1-8
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Keywords :
Principle of similarity; Nonlinear resonances; Equal-peak method; Vibration absorber
Abstract :
[en] This paper develops a principle of similarity for the design of a nonlinear absorber, the nonlinear tuned vibration absorber (NLTVA), attached to a nonlinear primary system. Specifically, for effective vibration mitigation, we show that the NLTVA should feature a nonlinearity possessing the same mathematical form as that of the primary system. A compact analytical formula for the nonlinear coefficient of the absorber is then derived. The formula, valid for any polynomial nonlinearity in the primary system, is found to depend only on the mass ratio and on the nonlinear coefficient of the primary system. When the primary system comprises several polynomial nonlinearities, we demonstrate that the NLTVA obeys a principle of additivity, i.e., each nonlinear coefficient can be calculated independently of the other nonlinear coefficients using the proposed formula.
Research center :
Space Structures and Systems Lab.
Disciplines :
Mechanical engineering
Author, co-author :
Habib, Giuseppe ;  Université de Liège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Kerschen, Gaëtan  ;  Université de Liège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Language :
English
Title :
A principle of similarity for nonlinear vibration absorbers
Publication date :
2016
Journal title :
Physica D. Nonlinear Phenomena
ISSN :
0167-2789
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
332
Pages :
1-8
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
FP7 - 307265 - NOVIB - The Nonlinear Tuned Vibration Absorber
Funders :
CER - Conseil Européen de la Recherche [BE]
CE - Commission Européenne [BE]
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since 30 August 2016

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