Vibro-acoustic behaviour of multi-layer orthotropic panels

Authors

  • 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

Keywords:

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

Abstract

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.

Published

2002-09-01

How to Cite

1.
Ghinet S, Atalla N. Vibro-acoustic behaviour of multi-layer orthotropic panels. Canadian Acoustics [Internet]. 2002Sep.1 [cited 2020Oct.24];30(3):72-3. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1460

Issue

Section

Proceedings of the Acoustics Week in Canada

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