Sound insulation characteristics of finite length orthotropic shells
Abstract
An analysis is presented of the acoustic characteristics of orthotropic cylindrical shells excited by axisymmetric plane sound waves travelling within the shells. The shell is exposed in a free field in the range of length L, and is otherwise covered with an infinite rigid baffle. The problem is studied on the basis of a thick shell theory in which account is taken of the effects of shear deformation and rotatory inertia. The air outside the shell is described by the Helmholtz linear acoustic equation. The sound transmission loss through the shell wall, TL, is obtained and calculated for various values of the physical parameters involved.
- Publication:
-
Journal of Sound Vibration
- Pub Date:
- November 1988
- DOI:
- 10.1016/0022-460X(88)90228-3
- Bibcode:
- 1988JSV...126..525C
- Keywords:
-
- Acoustic Attenuation;
- Cylindrical Shells;
- Noise Reduction;
- Orthotropic Shells;
- Vibration Damping;
- Carbon Fiber Reinforced Plastics;
- Composite Structures;
- Sound Transmission;
- Acoustics