Generic vehicle model N2A & N3D

On the initiative of the JRC, SVS FEM s.r.o. prepared a generic vehicle model corresponding to the category N2A and N3D (IWA 14). This numerical model is released as Generic Vehicle N2AN3D R1.0. Key properties of the model are parametrized in order to allow convenient model modifications, which might reflect various conditions of real N2A and N3D vehicles (various dimensions, mass distribution, age, fitness, etc.). The model is therefore suitable for stochastic analyses, which allow advanced, probabilistic assessment of barrier performance. The variability of the model is its greatest strength. The vehicle model was validated by several tests (corresponding to CEN/TR 16303). The validation procedure included tests that confirmed stability and robustness of the model and tests, which confirmed its reliability by comparing the results with experiments (curb test, full-scale bollard crash test). For further validation it would be necessary to have more experimental crash data with various N2A or N3D vehicles. Since the variability of this vehicle model and the variability of possible impact scenarios is endless, the development and enhancement process is expected to continue among the stakeholders of the concerned working group of the JRC or other interested parties. Further development will be focused on exploration of the performance of the model in particular concerning crash scenarios, which have not been tested and compared to experiments yet. This development approach driven by researchers from various organizations and various countries will maximize the generality of the model and should lead to updated versions of the model.