Methodology for kinematic comparison of human body models for pedestrian simulations

For the Euro NCAP pedestrian protection assessment of vehicles with deployable systems numerical simulations using Human Body Models (HBMs) have to be carried out.
Within the project CoHerent a procedure is developed to provide evidence that differing HBMs show comparable and reproducible results in terms of kinematics. The methodology is independent of the FE solver, independent of the HBM, reproducible and in accordance with boundary conditions of Euro NCAP pedestrian protocol.
Four representative generic vehicle models were developed to simulate pedestrian impacts. The models represent the current European fleet in terms of geometry and stiffness. Boundary condition for the HBM like initial position and anatomic landmarks for post processing are defined. The robustness of the procedure is proved by results of a sensitivity study using THUMS version 4 and the simplified GHBM pedestrian model.
The procedure is applied on state of the art human body models to develop corridors for trajectories. New or updated versions of HBMs have to be compared to the developed corridors to prove if their kinematics are comparable to other HBMs and therefore are applicable for Euro NCAP assessment.