Optimization of Crash Relevant Vehicle Structures During the Concept Phase

A reduction in time spent for early phase product development can cut costs significantly. Using Robust Design (RDO) methodology, safety related simulations can be carried out a lot earlier than in conventional processes.

Using multiparameter optimization showed that the methodology is suitable either to simplify FE Models or to identify crucial parameter. The calculation time was reduced significantly with a deviation of 5% compared to the original Model. Furthermore, investigations with respect to other important parameters, such as accelerations, could be carried out. 

Optimization of Crash Relevant Vehicle Structures During the Concept Phase
Picture: © Cla78 (fotolia.com)

The pedestrian safety results from DoE and the approximated meta-model showed that the angle of impact remains an important factor to the injuries sustained especially for children. The perpendicular hit had higher IC indicating it to be a worst case scenario. The variation in leg angles show struck leg backward to be having higher threat to the pedestrian than the struck leg forward. With the input on pedestrian gait and angle, pedestrian simulations for the simplified vehicle front model could be built up and were optimized for pedestrian safety.

Optimization of Crash Relevant Vehicle Structures During the Concept Phase
Pedestrian simulation input set up
read more (PDF 1.62 MB)

Dynardo GmbH

Employees
50
CAE-Engineers
35
Countries
2
Locations
2
Founded
2001