FORMAT-FORTRAN Matrix Abstraction Technique. Volume VI. Supplement II. Description of Digital Computer Program Phase 1-Extended.

Abstract

AL ANALYSIS, DEGREES OF FREEDOMThe FORMAT System has been augmented with highly efficient and reliable procedures for structural analysis via an alternate solution approach which combines the rigorous generation features of the existing force method with a new equation solving process characteristic of current displacement methods. As a result, a tenfold increase in potential problem size to in excess of 10,000 elastic degrees of freedom is the minimum currently anticipated as attainable on present major digital computers, and linear behavioral characteristics can take immediate advantage of any advance in hardware capabilities. In making these provisions, considerable emphasis was placed on the control of both physical and numerical error throughout the total solution process. To date an extensive range of complex configurations representing actual aerospace structures with up to 6500 degrees of freedom have been successfully processed as single entities on a production basis, that is, within the confines of a production schedule and with maximum reliability at minimum cost. (Author modified abstract)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1973
Accession Number
AD0764366

Entities

People

  • R. C. Morris

Organizations

  • Douglas

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Computer Programs
  • Computers
  • Demographic Cohorts
  • Digital Computers
  • Displacement
  • Equations
  • Production
  • Reliability
  • Structural Analysis

Readers

  • Computer Science.
  • Structural Dynamics.
  • Systems Analysis and Design

Technology Areas

  • Space