The Numerical Prediction of the Dynamic Response of a Cylindrical Shell in an Acoustic Medium

Abstract

The transient response of an elastic cylindrical shell immersed in an acoustic medium that is engulfed by a plane wave is determined numerically. The method applies the USA-STAGS code which utilizes the finite element method for the structural analysis and the Doubly Asymptotic Approximation (DAA) for the fluid-structure interaction. The calculations are compared to an exact analysis for two separate loadings: a plane step wave and an exponentially decaying plane wave. The results of the comparisons are within six percent of the exact solution; a fact that supports the applicability of USA-STAGS for fluid- structure interaction problems.

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Document Details

Document Type
Technical Report
Publication Date
Jun 16, 1980
Accession Number
ADA116196

Entities

People

  • Michael E. Giltrud

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Agreements
  • Classification
  • Computational Science
  • Computers
  • Dynamic Response
  • Engineering
  • Equations
  • Finite Element Analysis
  • Geometry
  • Integral Equations
  • Mechanics
  • New York
  • Plane Waves
  • Shock Waves
  • Structural Analysis
  • Waves

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)