Abstract Pedestrians are the most vulnerable road user and represent about 23% of the road traffic deaths in the world. A finite element (FE) model corresponding to a 5th percentile female pedestrian (F05-PS) was developed by morphing the Global Human Body Models Consortium (GHBMC) 50th percentile male pedestrian (M50-PS) model to the reconstructed geometry of a recruited small female subject. The material properties of the pedestrian model were assigned based on GHBMC M50-PS model. In model validation, the knee lateral stiffness and force time histories of F05-PS upper body showed similar trends, but softer responses than the corresponding data recorded in post mortem human surrogate (PMHS) tests and linearly scaled to average male anthropometry. Finally, the pedestrian model was verified in a Car-to-Pedestrian Collison (CPC) simulation. The marker trajectories recorded in simulation were close to the data recorded on small PMHS in testing and the model predicted typical knee ligament ruptures. Therefore, we believe the F05-PS model, the first FE model developed based on a female reconstructed geometry, could be used to improve vehicle front-end design for pedestrian protection and/or to investigate various pedestrian accidents.

中文翻译：

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小型女性行人有限元模型的开发与验证

摘要 行人是最脆弱的道路使用者，约占世界道路交通死亡人数的 23%。通过将全球人体模型联盟 (GHBMC) 的第 50 个百分位男性行人 (M50-PS) 模型变形为被招募的小个子的重建几何形状，开发了对应于第 5 个百分位女性行人 (F05-PS) 的有限元 (FE) 模型。女性主体。基于GHBMC M50-PS模型分配行人模型的材料属性。在模型验证中，F05-PS 上身的膝关节侧向刚度和力时间历程显示出类似的趋势，但响应比死后人体替代 (PMHS) 测试中记录的相应数据更柔和，并线性缩放到平均男性人体测量学。最后，行人模型在车对行人碰撞 (CPC) 模拟中得到验证。模拟中记录的标记轨迹与测试中小型 PMHS 记录的数据接近，并且该模型预测了典型的膝关节韧带断裂。因此，我们相信 F05-PS 模型是第一个基于女性重建几何体开发的有限元模型，可用于改进车辆前端设计以保护行人和/或调查各种行人事故。