Ring source/force excitation of axisymmetric shell structure
Abstract
The formulation of the near field pressures, far field pressures and acoustic particle displacements of a ring source and a ring axial force is presented. These quantities are necessary ingredients for calculations of far field radiation in the presence of the scattering action of an axisymmetric shell structure. Numerical results for specific spherical and prolate spheroidal shells show that the former amplifies the radiation, at resonance, much more than does the latter. The programs can be used to predict far field sound radiation from branched shells with or without rib stiffening.
 Publication:

Unknown
 Pub Date:
 November 1988
 Bibcode:
 1988rsfe.rept.....J
 Keywords:

 Particle Motion;
 Pressure Distribution;
 Resonance;
 Sound Waves;
 Spherical Shells;
 Underwater Acoustics;
 Circles (Geometry);
 Scatter Propagation;
 Scattering Coefficients;
 Spherical Coordinates;
 Symmetry;
 Atomic and Molecular Physics