摘要
研究后排小身材女性乘员在正面100%碰撞试验中的损伤风险,为提升汽车约束系统的防护性能提供参考数据。应用已验证的符合中国人体特征的第五百分位女性乘员损伤仿生模型(TUST IBMs F05-O)搭载某款经验证的汽车有限元模型,依据C-NCAP(2021年版)正面100%重叠刚性壁障碰撞试验要求,着重对乘坐于后排的小身材女性乘员进行头部、颈部、胸腹部及腰椎损伤分析。结果表明:TUST IBMs F05-O模型脊柱的高生物逼真度能充分表现头颈部围绕安全带的侧向屈曲运动;头部与前排座椅碰撞造成头颈部严重损伤,胸部黏性准则(VC)值为0.34,且压缩量较高,肺部受挤压而造成损伤,腰椎损伤指标(LSI)及腰椎损伤评定参数(Lfx)未超出相应的损伤阈值。应用具有高生物逼真度的第五百分位中国女性乘员损伤仿生模型进行汽车碰撞仿真试验,对智能座舱和零重力座椅开发、汽车主被动安全一体研究及未来数字测评方法等针对中国小身材女性乘员的安全防护研究具有重要的应用价值。
The damage risk of small rear passenger in frontal 100%crash test was investigated to provide reference data for improving the protection performance of vehicle restraint system.The simulation was set up based on the 100%frontal impact as specified in the C-NCAP(2021)using the validated injury bionic model with the 5th percentile Chinese female anatomical characteristics and the validated car finite element model.The injuries of the small size female passenger sitting the second row were analyzed including the head,neck,thoracic-abdomen and lumbar.The results show that the TUST IBMs F05-O model presents a good kinematics response of occupants in the 100%frontal impact.The lateral flexion movement of the head and neck around the seat belt is obviously observed because the spine of TUST IBMs F05-O model has high bio-fidelity.Head and neck injuries are severed as a result of the head contacted with the frontal seat.The chest viscous criterion(VC)value is 0.34 with a higher chest compression so that the lungs are compressed and injured.The lumbarinjury index(LSI)and lumbar injury evaluation parameter(Lfx)are less than the corresponding injury threshold.The application of the fifth percentile Chinese female occupant injury bionic model with high biological fidelityto car crash simulation test has important application value for the development of intelligent cockpit and zerogravity seat,the study of vehicle active and passive safety integration,and the future digital evaluation method.
作者
李海岩
胡静
贺丽娟
吕文乐
崔世海
阮世捷
LI Haiyan;HU Jing;HE Lijuan;LV Wenle;CUI Shihai;RUAN Shijie(International Research Association on Emerging Automotive Safety Technology,Tianjin University of Science and Technology,Tianjin 300222,China)
出处
《汽车安全与节能学报》
CAS
CSCD
北大核心
2023年第4期421-430,共10页
Journal of Automotive Safety and Energy
基金
国家重点研发计划(2018YFC0807203)
天津科技大学研究生科研创新项目(YJSKC2021S04)。
