Energy Pumping in Acoustics: Analytical and Numerical Developments

Arnaud Rolland (1) , Alireza Ture Savadkoohi (2) , Claude-Henri Lamarque (2)

1 IFSTTAR/MAT - Département Matériaux
2 LTDS - Laboratoire de Tribologie et Dynamique des Systèmes

In this paper, vibratory energy exchanges in an acoustic media between a main system and a membrane namely Nonlinear Energy Sink (NES) is discussed. Multi-scale behaviors of the system at different time scales are detected and invariants of the system are captured. Quasi-periodic behavior of a system which can emerge from this nonlinear system under some special external forcing terms is shown and commented upon.

Domaines: Mécanique [physics.med-ph]; Génie civil

Arnaud Rolland, Alireza Ture Savadkoohi, Claude-Henri Lamarque. Energy Pumping in Acoustics: Analytical and Numerical Developments. 18eme Symposium Vibrations, Chocs et Bruit (VCB), XVIII-th symposium Vibrations, Shocks & Noise (VISHNO),, Jul 2012, Clamart, France. ⟨hal-00803676⟩