A Revision of the Dynamic Design-Analysis Method (DDAM) in NASTRAN

Abstract

This report describes the theory, implementation, and use of the Dynamic Design-Analysis Method (DDAM) in the NASTRAN finite element structural analysis computer program. DDAM is the procedure used in the shock design of shipboard equipment. Since such equipment is also frequently analyzed with NASTRAN, the inclusion of DDAM in NASTRAN greatly enhances the efficiency of the design-analysis process.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1982
Accession Number
ADA122566

Entities

People

  • Myles M. Hurwitz

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Computations
  • Computer Programs
  • Coordinate Systems
  • Displacement
  • Dynamic Response
  • Eigenvalues
  • Engineering
  • Equations
  • Frequency
  • Grids
  • Identification
  • Resonant Frequency
  • Shock Response Spectra
  • Spectra
  • Static Loads
  • Structural Analysis
  • Vibration

Readers

  • Software Engineering
  • Structural Health Monitoring of Composite Structures.
  • Systems Analysis and Design