Accident statistics show that more than 80% of car-to-pedestrian collisions (CPC) occur when pedestrians cross the road. It is very important to establish a finite element model with natural walking posture to study the kinematics and injury mechanism of pedestrians. In this study, a finite element model of six-year-old child pedestrian is developed with detailed anatomical characteristics and posture parameters as specified in Euro NCAP Pedestrian Human Model Certification (TB024). The numerical human body model is validated in total twelve simulations in which the pedestrian is impacted against four generic vehicle models at speeds 30, 40, 50 km/h prescribed in TB024. The Head Impact Time (HIT), Contact Force and the Trajectories of HC, T12 and AC of all twelve simulations are compared with the reference corridors provided by Technical Bulletin 024. The results indicate that the numerical human body model of a six-year-old child can be used to demonstrate the suitability of the sensing system for the range of pedestrian sizes; the timing of system deployment, and the bonnet deflection due to body loading. Furthermore, the model could be a good tool for further research on pedestrian injury mechanism and the development of pedestrian protection devices.

中文翻译：

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验证具有 Euro NCAP 行人人体模型认证 (TB024) 中规定的六岁儿童解剖特征的有限元模型

事故统计数据显示，超过 80% 的汽车与行人碰撞 (CPC) 发生在行人过马路时。建立具有自然行走姿势的有限元模型对研究行人的运动学和损伤机理非常重要。在本研究中，根据 Euro NCAP 行人人体模型认证 (TB024) 中规定的详细解剖特征和姿势参数，开发了 6 岁儿童行人的有限元模型。人体数值模型在总共十二个模拟中得到验证，其中行人以 TB024 中规定的 30、40、50 公里/小时的速度与四种通用车辆模型碰撞。头部撞击时间 (HIT)、接触力和 HC 的轨迹，所有十二个模拟的 T12 和 AC 与技术公告 024 提供的参考走廊进行了比较。结果表明，一个 6 岁儿童的数值人体模型可用于证明传感系统对范围的适用性行人大小；系统部署的时间，以及由于车身载荷引起的发动机罩偏转。此外，该模型可以成为进一步研究行人伤害机制和开发行人保护装置的良好工具。