Time Harmonic Acoustic Radiation from a Submerged Elastic Shell Defined by Nonconcentric Cylinders.

Abstract

The acoustic radiation from an elastic cylindrical shell defined by nonconcentric cylindrical surfaces and submerged in an acoustic fluid is studied. The driving mechanism is a time harmonic internal pressure. In particular, the influence of the nonconcentricity parameter, delta, on the resulting radiation field is examined. The solution is obtained by means of an expansion in powers of this parameter about the concentric solution, delta = 0. Each order of solution is solved in closed form by means of boundary integral equation methods. Results are given for the zeroth and first order solutions and it is seen that a jth driving mode will introduce nearest neighbor (j-1) and (j+1) modes in the first order solution. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1976
Accession Number
ADA034886

Entities

People

  • Richard Paul Shaw

Organizations

  • University at Buffalo

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundaries
  • California
  • Civil Engineering
  • Coefficients
  • Coordinate Systems
  • Elastic Shells
  • Engineering
  • Equations
  • Integral Equations
  • Internal Pressure
  • Mechanical Properties
  • Mechanics
  • New York
  • Radiation
  • Three Dimensional
  • Two Dimensional
  • Waves

Fields of Study

  • Mathematics
  • Physics

Readers

  • Approximation Theory.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Structural Dynamics.