To assure a certain quality of industrial products, the single components have to be checked for fatigue life. This is often done by complicated and expensive tests. Here an optimization of the test rig configuration results in much simpler tests.

First the loads that act on the component under investigation and the corresponding stresses and damage values are determined by simulations. Then the goal of the optimization is to attain these values with a much simpler test rig configuration, which means with reduced degrees of freedom.

In detail, the optimization consists of two steps: First we determine those configurations, where we expect the best results with respect to the given damage values. After that we optimize the corresponding time signals.  This is done by a multicriterial optimization approach.

Finally to determine the best possible test rig configuration, we visualize the solutions, found by our optimization, in a decision support software. This tool allows the engineer to navigate between different solutions and to find his personal best solution.

Projektrahmen:

This project belongs to "Innovationszentrum Applied System Modeling". More precisely it is part of the project "(P4) Virtual product development for vehicle technology".

• Innovationszentrum Applied System Modeling