Crash Test Dummy Model Allows Engineers to Simulate Crash Tests

October 4th, 2007

ESI Group has just released Version 2.0 of BioRID-II (Biofidelic Rear Impact Dummy, model) for PAM-CRASH/PAM-SAFE 2G. This first industrial version of the newest BioRID-II dummy has an articulated thoracic/lumbar spine similar to the human one (having 24 vertebrae). The neck is maintained under pre-tension load via a muscle substitute consisting of a single damper mounted in parallel with a flexor and an extensor spring. The abdomen is filled with a water cavity and the torso texture is a soft silicon rubber.

Using this model with PAM-CRASH/PAM-SAFE 2G makes it possible to accurately simulate the acceleration, force, and the kinematics of a car occupant in order to minimize the whiplash injuries that can occur during a rear crash.

The BioRID-II dummy model was validated on series of component tests over the torso, head, neck and spine assemblies and on sled tests. The sled tests were performed for three representative pulses on a test device with a deformable back rest calibrated to reproduce the behavior of typical car seats.

This FE model was developed in a FAT (the German Association for Automotive Research) Project in cooperation with all the German car makers (Audi, BMW, Daimler Chrysler, Karmann, Opel, Porsche, and Volkswagen), seat manufacturers (Hammerstein, Johnson Controls, and Keiper) and Denton COE, the manufacturer of the hardware dummy.

Entry Filed under: Safety Test, Simulation