Today's Safety Restraint Systems are a compromise in that they areoptimised for standard crashes and only take the most important crashcharacteristics into account when activated. This paper is about how tooptimise the design parameters of the airbag and the belt for a largeclass of crashes. The currently used multibody models are far too complexfor optimisation. The key-issue is to find a metamodel, i.e. aneasy-to-calculate approximation for the time-consuming full analysismodel. This metamodel then can be used in the iterative optimisationprocess. Here, the theory of design of experiments in combination withmultiple regression, using the full model for the 'experiments', isapplied to find the metamodel. The results show that the obtained modelis accurate enough to be used for the optimisation of the designparameters.! However, the metamodel is applicable only for one crash, i.e.all parameters in the full analysis model to characterise the crash andthe occupant have to be fixed a priori. Further research enabling themetamodel to cover a large class of crashes is recommended.
|Title of host publication||ISATA 2000 - automotive and transportation technology : Dublin, Ireland, 25-27 September 2000|
|Publication status||Published - 2000|