Three-Dimensional Analysis of Acoustic Scattering from a Coated Cylindrical Shell.

Abstract

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.

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Document Details

Document Type
Technical Report
Publication Date
Sep 15, 1998
Accession Number
ADA361855

Entities

People

  • Bruce E. Sandman
  • Sung H. Ko

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Air Platforms
  • C4I

DTIC Thesaurus Topics

  • Acoustic Scattering
  • Acoustic Waves
  • Angle Of Incidence
  • Boundaries
  • Differential Equations
  • Elastic Properties
  • Elastic Waves
  • Equations
  • Geometry
  • Materials
  • Modulus Of Elasticity
  • Scattering
  • Secondary Waves
  • Three Dimensional
  • Two Dimensional
  • Wave Equations
  • Waves

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering