NAS107 - Optimisation with MSC Nastran

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MSC Nastran features a comprehensive design sensitivity and optimisation capability. It is possible to design for a variety of user-defined objectives such as minimum weight or maximum frequency. This seminar covers the theoretical and practical aspects of MSC Nastran design sensitivity and optimisation: emphasis is placed on using the program to solve practical engineering problems. The capabilities of the program, including typical applications, are covered in detail. The concept of a design model is introduced. The process of optimising a structure is discussed from initial modelling to interpretation of results. Numerous example problems reinforce the material covered in the lectures.
Length: 
3 days
Pre-requisites : 
NAS101 or equivalent experience.
Topics: 
  • What is design optimisation? - The basic optimisation problem statement
  • Introduction to numerical optimisation
  • The concept of a design space - Constrained and unconstrained minimisation techniques
  • Convergence testing - Numerical aspects of interest to the design engineer
  • Analysis versus design modelling - Design model definition procedure - choosing the design variables, objective,  and constraints
  • Interpretation and utilisation of optimisation results
  • Topology Optimisation
  • Shape Optimisation
  • Topography Optimisation
  • Design variable linking and reduced basis formulations - Formulation of synthetic design variable to property relations - Formulation of synthetic responses
  • Dynamic response
  • Special Modelling topics
  • Multi Model Optimisation
  • Superelement optimisation
  • Non-linear Optimisation
  • Aeroelastic Optimisation