摘要
探究了货车与电动两轮车碰撞事故中碰撞形态与骑车人运动学响应及损伤特征的关联性。筛选263例视频样本,提取车辆类型、碰撞角度和碰撞速度等参数;采用多体建模软件MADYMO搭建典型场景,开展16组仿真,以分析碰撞角度和位置对骑车人运动学响应及损伤的影响。结果表明碰撞角度超过110°时,骑车人头部伤害允许指标(HIC)和头部角加速度突然增大;至碰撞角度120°时,头部角加速度达到最大值(73.9 krad/s^(2)),HIC为11931。碰撞位置处于货车中心区域时,骑车人HIC(1231~1461)和头部角加速度(22.6~26.9 krad/s^(2))处于较低区间,头部损伤风险较小;而处于货车两侧时,骑车人胸部3 ms加速度为25.8g~121.8g,胸部损伤风险较小。因而,碰撞角度与位置均对骑车人运动学响应影响显著。
The relationship between collision patterns in truck-versus-electric-two-wheeler crashes,the kinematic responses of riders,and injury characteristics were investigated.16 simulation experiments were constructed by using the multi-body modeling software MADYMO based on 263 scenario-related cases to analyze the collision angles and the positions.The results show that the head injury metrics(the head injury criterions(HIC)and the head angular accelerations)sharply increase when the collision angles exceeds 110°,with the peaking at the collision angle of 120°(the HIC of 11931,the head angular acceleration of 73.9 krad/s^(2)).When the collision position is in the central area of the truck,the cyclist’s HIC(1231~1461)and the head angular acceleration(22.6~26.9 krad/s^(2))fall within lower ranges,that means lower risk of head injury.When the collision occurs on either side of the truck,the cyclist’s chest 3-ms acceleration is 25.8g~121.8g,that means a lower risk of chest injury.Therefore,both the collision angle and the collision position have a significant impact on the cyclist’s kinematic response.
作者
郑雯祥
王丙雨
杨垚
龚悠
秦利燕
ZHENG Wenxiang;WANG Bingyu;YANG Yao;GONG You;QIN Liyan(School of Mechanical and Automotive Engineering,Xiamen University of Technology,Xiamen 361024,China;Fujian Provincial Key Laboratory of Advanced Design and Manufacture for Bus Coach,Xiamen University of Technology,Xiamen 361024,China)
出处
《汽车安全与节能学报》
北大核心
2025年第6期859-866,共8页
Journal of Automotive Safety and Energy
基金
福建省自然科学基金面上项目(2022J011250)。
关键词
碰撞事故
电动两轮车
货车
骑行人损伤
统计分析
运动学响应
collision accidents
two-wheeled vehicles
trucks
rider injuries
statistical analysis
kinematic response
