Lumped Parameter Beam Models Based on Mechanical Impedance

Abstract

A new approach has been used, based on an impedance method, to develop accurate lumped parameter models of uniform Bernoulli-Euler beams. By adjusting the parameters so that the impedance of the models is accurate at the boundaries, it is demonstrated that they will also be accurate for ground shock loading if the spectrum of the loading indicates low frequency content. Improved models for clamped-clamped, hinged-hinged, clamped-free, clamped-propped and clamped-guided beams are presented. Some previous results for bars are summarized. Also some previous results based on matching model parameters are included.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1967
Accession Number
AD0810815

Entities

People

  • Hae Lee
  • Vernon H. Neubert

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Bending Moments
  • Boundaries
  • Civil Engineering
  • Classification
  • Contracts
  • Dynamic Response
  • Frequency
  • Ground Shock
  • Impedance
  • Mechanical Impedance
  • Military Research
  • Mobility
  • Power Series
  • Resonant Frequency
  • Shock
  • Spectra
  • Vibration

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Structural Dynamics.