Parameter sensitivity analysis of pedestrian head dynamic response and injuries based on coupling simulations

Abstract

There are a very limited number of reports studying on the dynamic response and injuries of pedestrian head in the scenarios with head hitting windshield. This study aims to investigate the significant factors that affect the dynamic response and injuries of pedestrian head through finite element-multi-body coupling simulations. Two finite element vehicle models and two multi-body pedestrian human models were used to build the coupling simulations. Orthogonal experimental design and analysis of variance were used for parameter combination and data analysis. This study demonstrated that the dynamic response of pedestrian head and HIC 15 were strongly associated with collision speed and pedestrian orientation. Vehicle type had a significant influence on the dynamic response of pedestrian head and HIC 15 , while there was no significant relationship between the dynamic response of pedestrian head and HIC 15 and the size of pedestrian human models. Collision speed, pedestrian orientation, and vehicle type should be prioritized over the other collision parameters in the study of head injury mechanism and reconstruction of vehiclepedestrian collisions in the scenarios with head hitting windshield.

Numerical Approaches to Pedestrian Impact Simulation with Human Body Models: A Review

“…MADYMO MB models were also used as a tool to determine the boundary conditions for subsequent FE simulations [34,123,129,207]. The coupling of MB and FE simulations is also a valid approach in both accident reconstruction [34,152] and crashworthiness analyses [81,130]. In most coupling cases, the coupling configuration is FE vehicle-MB pedestrian, but FE parts (skull/brain models in particular) for an MB model are also utilized [34,152,187,199].…”

Research on Cyclist Injury Based on Simulation Model of Real Electric Vehicle and Two Wheeled Vehicle Collision Accident

“…Yunus K [4] and others studied the heat transfer of human head by using the finite element method, simulated the effects of various physical and geometric parameters. Liu w [5] et al Studied the important factors affecting the dynamic response and injury of pedestrian head through finite element multi-body coupling simulation.…”