Vibro-acoustic behaviour of multi-layer orthotropic panels

Auteurs-es

  • Sebastian Ghinet Department of Mechanical Engineering, Université de Sherbrooke, Boul. Université, Sherbrooke, Que. J1K 2R1, Canada
  • Noureddine Atalla Department of Mechanical Engineering, Université de Sherbrooke, Boul. Université, Sherbrooke, Que. J1K 2R1, Canada

Mots-clés :

Acoustic properties, Acoustic waves, Eigenvalues and eigenfunctions, Frequencies, Integration, Matrix algebra, Numerical methods, Shear deformation, Strain, Vibrations (mechanical), Orthotropic panels

Résumé

Vibro-acoustic behavior of multi-layer orthotropic panels was discussed. A general eigenvalue approach based on wave theory was presented to compute the dispersion curves of panels. The radiation efficiency, the modal density and the group velocity were computed using these curves, and were used to predict the transmission loss of the panels. Results showed that at low frequencies the effect of bending dominates while at high frequencies shearing became significant.

Fichiers supplémentaires

Publié-e

2002-09-01

Comment citer

1.
Ghinet S, Atalla N. Vibro-acoustic behaviour of multi-layer orthotropic panels. Canadian Acoustics [Internet]. 1 sept. 2002 [cité 29 avr. 2026];30(3):72-3. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1460

Numéro

Vol. 30 No. 3 (2002)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

Licence

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