Simulations performed with mathematical models must be compared with physical reality. This process can be denominated as validation of the used model. A model is validated when the decision is made that the model predictions correlate acceptably with the observed facts. A validated model then can be used for predictions based on system parameter changes to evaluate or improve the performance of the system. The parameter changes must be made within reasonable limits to avoid unacceptable deviations from the behaviour of the validated model. Validation is necessary to ensure that all important factors are accounted for by the modelling assumptions and simplifications. This report describes the experimental validation of a 2-dimensional model of the tno-10 dummy in a deceleration sled test. The model is formulated using the MADYMO crash victim simulations program package. The experiment for this study is kept as close as possible to the standardized 50 km/h dynamic test for belt restraint systems according to the ece-16 regulations. To ensure a two-dimensional motion, the test is done with a lap belt and two separate symmetrically crossed shoulder belts. For good visibility of the dummy elements for motion analysis and to avoid uncontrolled belt slippage, the test is done without the dummy being dressed in the standardized overall.
Abstract