Abstract
Road traffic fatalities involving powered-two wheeler (PTW) are the highest portion in Thailand. Few studies are available concerning the head impact loading and head trauma in case of real PTW accidents. This work, therefore, aims to improve the understanding on kinematics and head trauma of PTWs rider and pillion passengers. By selecting a real-world PTW accident provided by the Central Institute of Forensics Science database, reconstruction of the accident was performed using multibody dynamics simulations. Parametric studies which focused on vehicle speed and position of rider and passenger at impact was conducted to obtain the best correlations. Then, head impact velocity, impact direction and head impact area have been extracted and implemented in the finite element head model to simulate the head trauma by impacting directly the head model on the vehicle structure. The motorcyclist’s head and the pillion passenger’s head impact conditions were retrieved and used as initial condition for the finite element head impact simulation. Head and brain injuries were analyzed.
Highlights
IntroductionPTWs fatality rate in Thailand remains very high among the other type of vehicles. It has been reported that 73% of traffic deaths involved powered-two wheelers [1]
powered-two wheeler (PTW) fatality rate in Thailand remains very high among the other type of vehicles
Computer simulations of PTW-tocar collision provide an effective approach for studying injury mechanisms of motorcyclist and pillion passenger [2,3,4]
Summary
PTWs fatality rate in Thailand remains very high among the other type of vehicles. It has been reported that 73% of traffic deaths involved powered-two wheelers [1]. Many studies have focused on a single rider [ 2] but in real accidents pillion passengers are among the casualties. The objective of this study is to improve understanding of kinematics and head trauma of PTW rider and pillion passenger by using a combination of two computer simulation tools. Computer simulations of PTW-tocar collision provide an effective approach for studying injury mechanisms of motorcyclist and pillion passenger [2,3,4]. There are various literatures which have used multibody simulations to reconstruct the accidents [ 2- 5] and study pedestrian kinematics [ 5]. A combined approach of multibody dynamics and finite element simulations can be an effective way to study both rider and pillion kinematics as well as head injuries
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