摘要
本文旨在研究不同碰撞速度和行人步态条件下颈部肌肉主动力对行人头部损伤的影响。首先,采用湖南大学头颈HHNM-Ⅲ模型,取代LSTC假人模型头颈部分,构成行人混合假人模型并运用尸体实验数据验证该混合模型的有效性。然后运用该模型进行仿真,以分析不同碰撞速度下,撞击侧腿后摆和撞击侧腿前迈两种行人步态对行人头部损伤的影响。结果表明:在低速碰撞下,颈部肌肉会降低头部的运动幅度,但会使头部损伤风险增大;撞击侧腿后摆步态下的行人头部损伤比撞击侧腿前迈的步态严重;在高速碰撞条件下,颈肌对头部损伤的影响较小。
This paper aims to investigate the effects of active force of neck muscle on pedestrian head injury under different impact speeds and pedestrian gaits.Firstly,the head-neck part of LSTC pedestrian model is replaced by HHNM III head-neck model developed by Hunan University to form a hybrid pedestrian dummy model,whose effectiveness is then verified by cadaver test data.Then a simulation is conducted to analyze the effects of pedestrian gaits,i.e.struck leg backward(SLB)and struck leg forward(SLF)on pedestrian head injury under different impact speeds.The results show that in low-speed collisions,the neck muscles will reduce the amplitude of head movement,but increase the risk of head injury,the pedestrian head injury with a gait of SLB is severer than that with SLF,and the neck muscles have smaller effects on head injury in high-speed collisions.
作者
李凡
叶铭杰
黄巍
聂进
谭明钢
Li Fan;Ye Mingjie;Huang Wei;Nie Jin;Tan Minggang(Hunan University,State Key Laboratory of Advanced Design Manufacturing for Vehicle Body,Changsha 410082)
出处
《汽车工程》
EI
CSCD
北大核心
2022年第3期385-391,411,共8页
Automotive Engineering
基金
国家自然科学基金(51205117)
湖南省自然科学基金科教联合基金(2019JJ70045)
湖南省教育厅科学研究项目(19C1559)资助。
关键词
行人碰撞事故
行人头部损伤
颈部肌肉主动力
pedestrian collision accident
pedestrian head injury
neck muscle active force
