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.
@article{arxiv.2009.08759,
title = {Nonlinear vibration localisation in a symmetric system of two coupled beams},
author = {Filipe Fontanela and Alessandra Vizzaccaro and Jeanne Auvray and Björn Niedergesäß and Aurélien Grolet and Loïc Salles and Norbert Hoffmann},
journal= {arXiv preprint arXiv:2009.08759},
year = {2022}
}