Development of an Analytical Model for Large Space Structures.

Abstract

A methodology is presented for modeling large truss-type structures based on the concept of equivalent continuum. The equivalent effective elastic and dynamic properties of the continuum model in terms of the material and geometric properties of the truss are derived in a simple and straightforward manner. The accuracy of the model is demonstrated in a free vibration problem, when the results are compared to those obtained from the conventional finite element method. Both simply supported and free-free boundary conditions are considered. In addition, the assumptions made in obtaining the continuum solution are discussed. Numerical results clearly indicate the potential of this approach for modeling large repetitive truss-type structures. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 15, 1982
Accession Number
ADA119349

Entities

People

  • Mohan Aswani

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Applied Mechanics
  • Computer Programming
  • Computer Programs
  • Computers
  • Elastic Properties
  • Equations
  • Equations Of Motion
  • Frequency
  • Large Space Structures
  • Materials
  • Mechanics
  • Modulus Of Elasticity
  • Resonant Frequency
  • Space Systems
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Engineering
  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Structural Dynamics.
  • Systems Analysis and Design

Technology Areas

  • Space