LS-OPT Training Class Tutorial Problems

This tutorial problem set allows LS-OPT users to exercise aspects of mathematical optimization, design optimization and robust design. LS-OPTui is used to create or modify the input.

A first part of the problem set attempts to simulate the design process for examples that are typical for the LS-DYNA® user. Detours have been introduced to investigate features related to a particular design step in more detail. The examples are

Crashworthiness optimization of a vehicle
Mode tracking
Multidisciplinary Design Optimization
Material parameter identification

Another example has an explicit algebraic formulation. The purpose is to introduce the user to the mathematical aspects of approximations, accuracy and convergence. The example is

Nonlinear explicit problem

The final part of the problem set teaches the user how to assess reliability of a design, investigate the sources of variability on the FE model and incorporate the effect of uncertainties during design. The categories are:

Reliability
Outlier Analysis
Reliability-based design optimization
Robust design

The run times for the examples vary between a few seconds (simple explicit problems) and ~10 min. (3GHz) (Iterative optimization using LS-DYNA for crash optimization). The longest DYNA simulation time is about 15s.

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