Beam Motions under Moving Loads Solved by Finite Element Method Consistent in Spatial and Time Coordinates

Abstract

A solution formulation and numerical results are presented here for the time-dependent problem of beam deflections under a moving load which can be neither a force nor a mass. The basis of this approach is the variational finite element discretization consistent in spatial and time coordinates. The moving load effect results in equivalent stiffness matrix and force vector which are evaluated along the line of discontinuity in a time-length plane. Numerical results for several problems have been obtained, some of which are compared with solutions obtained by Fourier series explanations.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1980
Accession Number
ADA094712

Entities

People

  • Julian J. Wu

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Computer Programs
  • Computers
  • Differential Equations
  • Engineering
  • Equations
  • Finite Element Analysis
  • Grids
  • Materials
  • Mechanical Properties
  • Military Research
  • Modulus Of Elasticity
  • New York
  • Numerical Analysis
  • Standing Waves
  • Stiffness
  • Vibration
  • Weapons

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Structural Dynamics.