Numerical Investigations to Determine Sources for the Scatter of the BioRID Dummy

The BioRID v2.5 model is in a very fine validation state until now. In some new tests for further validation of the model, one can observe a very strong scatter in some major signals of the tests. Some of these signals are used to calculate injury criteria which are used to determine the quality of a seat in rear crash scenarios in consumer tests. This paper describes the new validation test setup and gives an overview about the latest validation state of the BioRID model. Furthermore, the problem of scatter in the tests is shown and possibilities where this scatter may come from have been studied. The main focus is on the parameters of the BioRID model which have an influence on the neck load cell signals.