Polyharmonic distortion approach for nonlinear acoustic load characterization - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Sound and Vibration Année : 2021

Polyharmonic distortion approach for nonlinear acoustic load characterization

Résumé

In this work, we analytically characterize the acoustic properties of a one-port nonlinear acoustic sample loaded on a waveguide. The classical reflection coefficient is extended as a scattering matrix relating the incident wave fundamental and harmonics amplitudes to the backward wave fundamental and harmonics amplitudes. Assuming that the acoustic load is defined as a nonlinear differential equation relating the acoustic pressure and the associated volume velocity, the scattering matrix is obtained by combining the harmonic balance method and the polyharmonic distortion approach. Theoretical and numerical aspects are considered. The proposed method is exemplified on two acoustic nonlinear absorbers.
Fichier principal
Vignette du fichier
PapierDPH_RevII_ v1.pdf (1.84 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03341408 , version 1 (10-09-2021)

Identifiants

Citer

M Volpe, S Bellizzi, Renaud Côte. Polyharmonic distortion approach for nonlinear acoustic load characterization. Journal of Sound and Vibration, In press, ⟨10.1016/j.jsv.2021.116426⟩. ⟨hal-03341408⟩
72 Consultations
39 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More