Study on Influence Law of Struck Pedestrian's Head Contact Location on Vehicle Body Surface

Based on the coupling of PC-Crash and MADYMO, vehicle and pedestrian are respectively modeled as a multi-body system. Influence laws and factors of upward throw and lateral deviation distances for the impacted pedestrian's head are in depth analyzed with simulating by selecting main factors influencing on pedestrian's head contact location on vehicle surface as independent variables. Moreover, for various influencing factors, approximate vehicle impact speed thresholds under different collision circumstances are determined from simulating data. On the other hand, mathematical relationships between post-impact pedestrian's upward throw/lateral deviation distances and vehicle impact speed under different collision scenarios are derived from regression analyses of simulating data, these derived regression equations may be used to access the lower vehicle impact speed and pre-impact pedestrian speed. The results in this paper will be of great practicability in reconstruction analysis of vehicle/pedestrian collisions.