NAS107 - Design Sensitivity and Optimization using MSC Nastran

Length:
3 Days
Pre-requisites :
NAS101A (Linear Static and Normal Modes Analysis using MSC Nastran) or equivalent experience
Topics:
Day One
- Introduction
- What is design optimization?
- Overview of MSC Nastran design optimization capabilities
- The basic optimization problem statement
- Introduction to numerical optimization
- The concept of a design space
- Constrained and unconstrained minimization techniques
- Convergence testing
- Numerical aspects of interest to the design engineer
- Design modeling I Analysis versus design modeling
- Design model definition procedure—choosing the design variables, objective, and constraints
- Design optimization input, part I
- Design modeling II
- Design variable and reduced basis formulations
- Formulation of synthetic design variable-to-property relations
- Formulation of synthetic responses
- Design optimization input, part II
- Cautions and techniques for avoiding common pitfalls
- Interpretation and utilization of optimization results
- Structural Optimization—theory and practice
- Coupling numerical optimizers and structural analysis—the theory of structural optimization
- Introduction to approximation concepts
- Design variable linking
- Constraint deletion
- Formal approximations
- Taking advantage of the approximation concepts in MSC Nastran
- Design sensitivity analysis
- Shape optimization
- Introduction and theory
- Shape basis vectors in the design model
- Overview of methods
- Dynamic response
- Optimization
- General considerations
- Basic equations: direct frequency, modal frequency, and modal transient response optimization
- Superelement optimization
- Overview of capabilities and general considerations
- Case control structure