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Introduction to Nastran

The purpose of this seminar is to introduce the new Nastran user to the basic ASCII input requirements for linear static and normal modes analysis of structures. Many important features of Nastran are illustrated with numerous example problems. Nastran data structure and element library, modeling practices, model debugging, and guidelines for efficient solutions are discussed.

Relevance

This session will introduce the engineers to FEA using Nastran. Unlike the introduction to FEA using I-DEAS MasterFEM that has pre and post processing covered in detail, this training will cover more details of the Nastran solver. This training will be a good starting point to using Nastran and a prerequisite to all other trainings using Nastran.

Course Content

  • Introduction Nastran
  • Introduction to finite element theory
  • Overview of Nastran input data
    • Input formats
    • General data structure
  • Executive control section
  • Case control section
    • Output requests
    • Data selection
    • Subcase definition
  • Bulk data section
    • Coordinate systems
    • Geometry
    • Constraints
    • Material properties
    • Elements
  • Intermediate modeling practices
    • Set notations
    • Rigid elements
    • Model debugging
    • Symmetry
    • Modeling recommendations
  • Parameters
  • Natural frequencies and normal modes
    • Governing equations
    • Methods of computation
    • Nastran entries for normal modes analysis
  • Introduction to the file management section
    • Restarts
    • Databases
  • Overview of advanced capabilities (as time permits)

Prerequisites

  • A basic knowledge of statics and strength of materials is highly recommended
  • No previous finite element analysis experience is required
  • Introduction to FEA using MasterFEM is recommended.
Time Structure
3 days
(2 days+
break+
1 day)
50% lecture
50% tutorials