EFFECT OF A PLATE WITH DAMPING ON THE ACOUSTIC FIELD OF A POINT SOURCE.
Abstract
A formal solution is obtained for the effect of a thin infinite plate with damping on the sound field due to a point source located a small distance from the plate in a uniform acoustic medium occupying the half-space on one side of the plate, with a vacuum on the other side. Damping is introduced by the use of a complex flexural rigidity in the equation of motion of the plate. Approximate expression are derived for the sound conduction caused by the plate for small values of the damping coefficient. The results are compared with the corresponding known results for an elastic plate. It is shown that the conduction effect is reduced by the presence of damping in the plate. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1965
- Accession Number
- AD0617737
Entities
People
- M. B. Friedman
- M. K. Myers
Organizations
- Columbia University