Advanced Simulation - FEM

Duration: 3-4 Days
 
Description:
 
The NX module "Advanced Simulation", which is trained in this seminar, gives the simulation engineer the possibility to simulate complex mechanical models with FEM.
 
The Advanced Simulation environment is used in this course as a pre-and post-processor and NX Nastran is used as the standard solver. Depending on the participants request the interfaces to solvers (e.g. Ansys, Abaqus, LS-Dyna) can be considered. The examples and the learning content treat FE methods for linear statics, i.e. NX Nastran solution SOL 101, which also includes FEM assemblies and contact conditions. Furthermore, free vibrations are explained with the solution SOL 103 and temperature analyses with the solution SOL 153. Nonlinear structural analyzes are processed using the solution SOL 106, but more complex nonlinearities should be calculated in the solution SOL 601 / SOL 701 which are treated in the advanced training "Advanced nonlinear methods".
 
The participants of this seminar are capable to build FE models of complex geometry, to simulate these and to evaluate the results. In addition, many tips and tricks from experienced users are taught which are presented on the basis of concrete case examples.

Advanced Simulation

Requirements:
 
- Basics of parametric 3D-modeling with NX
- Basics of engineering mechanics
 

Contents:

- Theoretical introduction
          - Stress and strength
          - Functionality of FEM
          - Limits and source of error
          - Quality controle
- CAE-data structure and Master-Model-Concept
- Efficient geometry preparation
          - Synchronous modeling
          - Polygon geometry
- Efficient meshing and mesh control
          - 3D tetrahedral and hexahedral elements
          - Shell elements 
          - 1D and 0D Elements 
- Mesh connections and contacts
- Definition of loads and constraints
- Use of Nastran solution methods
          - SOL 101 (statics and contacts)
          - SOL 103 (modal)
          - SOL 153 / SOL  159 (thermal transfer)
          - SOL 106 (nonlinear statics, basic)
- Case study for static analysis of
          - Components and assemblies
          - Bolted connection 
- Case study for basic nonlinear analysis:
          - Contact 
          - Large displacement 
          - Plastic material behavior
- Case study for parameter optimization with FEM 
- Case study for direct FE-modeling without geometry