Nonlinear vibration localisation in a symmetric system of two coupled beams

We report nonlinear vibration localisation in a system of two symmetric weakly coupled nonlinear oscillators. A two degree-of-freedom model with piecewise linear stiffness shows bifurcations to localised solutions. An experimental investigation employing two weakly coupled beams touching against sto...

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Bibliographic Details
Published in:Nonlinear dynamics 2021-03, Vol.103 (4), p.3417-3428
Main Authors: Fontanela, Filipe, Vizzaccaro, Alessandra, Auvray, Jeanne, Niedergesäß, Björn, Grolet, Aurélien, Salles, Loïc, Hoffmann, Norbert
Format: Article
Language:English
Subjects:
Automotive Engineering
Bifurcations
Classical Mechanics
Control
Dynamical Systems
Engineering
Localization
Mechanical Engineering
Original Paper
Oscillators
Stiffness
Vibration
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Summary:We report nonlinear vibration localisation in a system of two symmetric weakly coupled nonlinear oscillators. A two degree-of-freedom model with piecewise linear stiffness shows bifurcations to localised solutions. An experimental investigation employing two weakly coupled beams touching against stoppers for large vibration amplitudes confirms the nonlinear localisation.
ISSN:0924-090X
1573-269X
DOI:10.1007/s11071-020-05760-x