Three-Dimensional Analysis of Acoustic Scattering from a Coated Cylindrical Shell.
Final technical rept.,
NAVAL UNDERSEA WARFARE CENTER NEWPORT DIV RI
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A theoretical model was developed to evaluate the farfield pressure scattered from a coated cylindrical shell by a plane acoustic wave incident at an angle to the cylindrical axis a three-dimensional problem. The model is a two-layer-structure comprising an outer layer of microvoided elastomer coating that is perfectly bonded to a cylindrical shell. The analysis of this model is based on the theory of elasticity, acoustic wave equations, and pertinent boundary conditions. The major results presented here are calculated directivity patterns using three-dimensional analysis.