Sound Scattering from Submerged Elastic Objects and Shells of General Shape
Abstract
Three computational approaches have been used to obtain backscattering amplitudes for sound waves incident on elastic objects and shells in water: the T-matrix method, the Finite element/Boundary element method, and the superposition method. These methods have been found appropriate for analyzing the resonance effects apparent in the scattering from spheroidal solids, as well as from cylindrical shells with flat endcaps. The resonances have been interpreted by the phase matching of circumferential waves, and a simple method for obtaining the resonance frequencies based on the phase matching principle H. Uberall, L. R. Dragonette, and L. Flax, J. Acoust. Soc. Am. 61, 711 (1977) has proved suitable for predicting the calculated resonances of spheroids.... Acoustic scattering, Shallow water, Waveguide propagation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1993
- Accession Number
- ADA260630
Entities
People
- Gerard Maze
- Jean Ripoche
- Michael F. Werby
- Russel D. Miller
- Xiao-ling Bao
Organizations
- United States Naval Research Laboratory