RD-E: 5101 Size Optimization of a B-Pillar

This example defines a crash test on B-Pillar. The optimization objective is to minimize the mass of the B-Pillar by changing the shell thickness. The intrusion, which is defined by the optimization constraint is required to not be larger than the original model, to keep the passenger safe.

The Optimization feature in Radioss, makes it easy to set up an optimization problem in Radioss Block Format. The purpose of this example is to show how to set up an optimization, based on a crash test (Radioss Block model).
Figure 1.

ex_51_Bpillar

The setup of optimization in Radioss requires an extra input file apart from the usual Starter and Engine input files. The required file is an optimization input file named <name>.radopt (the Starter and Engine files are named <name>_0000.rad and <name>_0001.rad, respectively). The <name>.radopt file defines optimization entities such as the optimization objective, optimization constraints, design variables, optimization responses and so on.

Options and Keywords Used

Input Files

Before you begin, copy the file(s) used in this example to your working directory.

Modeling Video