training agenda

• Introduction to FEA using I-DEAS MasterFEM
• Introduction to Nastran
• Dynamic Analysis using MasterFEM and Nastran
• Nonlinear Analysis using Nastran and I-DEAS MasterFEM
• Practical Finite Element Analysis Techniques using Nastran and MasterFEM
• NAS106 - Nastran Superelement Analysis
• Miscellaneous MasterFEM: Optimization and Durability

Practical Finite Element Analysis Techniques using Nastran and MasterFEM

This seminar provides practical advice and guidance in using Nastran and MasterFEM for a variety of structural applications. Special Nastran techniques that can be used to obtain better results at less cost are discussed. Participants will increase their engineering productivity by modeling difficult shapes more easily, finding errors quickly, and running problems more efficiently. The seminar begins with practical information on element techniques, examining the potential problems as well as the benefits of using elements in various modeling situations. Particular attention is paid to mesh transitions, including the use of "R-type" elements. This discussion is followed by recommendations for static and dynamic analysis and information to aid in diagnosing modeling errors. In addition, the seminar explores some of the advanced features of Nastran and MasterFEM and how they can be used to reduce costs and improve user efficiency. These features include cyclic symmetry and using linear analysis to approximate nonlinear behavior.

Relevance

This is an advanced course that will teach the users who have already developed a good expertise in MasterFEM and Nastran advanced techniques. This will thus help users become power-users of the software and aid in advanced analysis. This will also teach users best-practices used for analysis.

Course Content

• Element techniques
  • Review of available options
  • Theoretical considerations and modern practices
  • Accuracy versus shape and mesh size
  • Modeling tricks
  • Mesh transitions and special connections
• Constraints and boundary conditions
  • The "R" constraints
  • Singularities-detection and cure
  • Symmetry methods
• Diagnosing modeling problems
  • Available diagnostic messages
  • Graphical methods
  • Useful output options
  • Free-body checks
  • Redundant analysis methods
• Recommendations for dynamic modeling
  • Performance of reduction techniques
  • Approximating frequencies using static analysis
  • Hints to evaluate the quality of modal solutions
• Nonlinear analysis
• Using linear analysis to model nonlinear behavior
• Overview of cyclic symmetry

Prerequisites

• A basic knowledge of statics and strength of materials is highly recommended
• Introduction to FEM using I-DEAS MasterFEM and Nastran.

Time	Structure
3 days (2 days+ break+ 1 day)	60% lecture 40% example problems