Experimental validation of the analytical modelling of a digitally created duffing acoustic nonlinear oscillator at low amplitudesMaxime Morell, Manuel Collet, Emmanuel Gourdon, Alireza Ture Savadkoohi and Emanuele De BonoMechanics & Industry, 26 (2025) 2DOI: https://doi.org/10.1051/meca/2024036