Efficient method based on multipole expansion for predicting the sound power of baffled plane plates

Authors

  • Stéphane Paquay LTAS-Dynamique des Structures, Univ. de Liège au Sart Tilman, Chemin des Chevreuils 1 (B52), B-4000 Liège, Belgium

Keywords:

Acoustic intensity, Acoustic variables measurement, Boundary element method, Integral equations, Pressure measurement, Vibrations (mechanical), Plane plates, Rayleigh integral, Sound power measurement, Source directivity

Abstract

Measuring the radiated power from a vibrating source using the integration of the active acoustic intensity normal to the structure surface, suffers from computational cost and the memory of the computer can also be a limiting factor. The multipole translation theory can be used with fast algorithm to accelerate the computation of pressure on the surface in the boundary elements method. This can also be used to measure source directivity and the radiated acoustic power.

Published

2000-09-01

How to Cite

1.
Paquay S. Efficient method based on multipole expansion for predicting the sound power of baffled plane plates. Canadian Acoustics [Internet]. 2000Sep.1 [cited 2021Apr.11];28(3):38-9. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1279

Issue

Section

Proceedings of the Acoustics Week in Canada