Dynamic Structural Analysis Using Boundary Element Techniques

Abstract

The purpose of this thesis is to demonstrate the use of boundary element techniques for the dynamic analyses of geometrically repetitive structures using the traveling wave approach. A formulation of the boundary element method (BEM) for 2-D isotropic materials is developed. The BEM formulation is then used to calculate the mass and stiffness matrices of one bay of a baseline structure. From the mass and stiffness a transfer matrix is developed for the bay. Using traveling wave theory, the transfer matrix is then used to identify the dynamical characteristics of a multiple bay structure. Results are compared to continuum theory.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1990
Accession Number
ADA222943

Entities

People

  • Matthew C. Phillips

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Boundaries
  • Boundary Element Methods
  • Computational Science
  • Delta Functions
  • Engineering
  • Equations
  • Frequency
  • Materials
  • Mechanical Engineering
  • Mechanics
  • Resonant Frequency
  • Structural Analysis
  • Three Dimensional
  • Traveling Waves
  • Two Dimensional
  • Waves

Fields of Study

  • Engineering
  • Physics

Readers

  • Database Systems and Applications
  • Structural Dynamics.