A Method to Compute the Force Signature of a Body Impacting on a Linear Elastic Structure Using Fourier Analysis

Abstract

A method is derived to compute the force signature of a body impacting on a linear elastic structure. The time history of the impacting force is reconstructed from the response to impulse and response to the force at various points on the structure. The method is quite general and is applicable to any linear structure. The method is tested on a two degree of freedom system with various applied forces and reconstructs the forces very accurately.

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Document Details

Document Type
Technical Report
Publication Date
Sep 17, 1982
Accession Number
ADA119747

Entities

People

  • G. J. O'hara
  • R. S. Schechter

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Cyber
  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Computer Programs
  • Computers
  • Errors
  • Fourier Analysis
  • Frequency
  • Intervals
  • Military Research
  • Numerical Integration
  • Runge Kutta Method
  • Sine Waves
  • Structural Analysis
  • Submarine Hulls
  • Submarines
  • Time Domain
  • Time Intervals
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Computer Vision.
  • Explosive Engineering.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)