基于参数反求的汽车乘员肋骨有限元模型研究

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基于参数反求的汽车乘员肋骨有限元模型研究

陈吉清¹,李伟²,刘卫国³,兰凤崇⁴,马正伟¹

1. 华南理工大学机械与汽车工程学院
2. 华南理工大学
3. 浙江省汽车安全技术研究重点实验室
4. 华南理工大学汽车工程学院

收稿日期:2012-12-12 修回日期:2012-12-04 发布日期:2013-06-20
通讯作者: 兰凤崇

A Research about the Finite Element Models of Vehicles Occupant Ribs Base on the Inverse Method

Received:2012-12-12 Revised:2012-12-04 Published:2013-06-20

摘要/Abstract

摘要： 为预测和评判汽车碰撞事故中乘员胸部肋骨骨折引起的胸部损伤，对一位中国成年50百分位男性志愿者进行CT扫描，建立了具有人体解剖学结构的肋骨有限元模型。为提高模型的生物仿真度，通过动物组织反求实验获得肋骨材料参数。模型用Kindig所做的人体肋骨载荷实验进行验证，并与直接引用参考文献材料参数得到的仿真数据进行比较。结果表明，其位移-反作用力曲线与实验曲线得到了较好的吻合，并且采用反求方法获取的材料参数进行仿真计算时肋骨具有更好生物仿真度。

关键词: 汽车安全, 生物力学模型, 人体肋骨, 参数反求

Abstract: In order to predict and evaluate the human thoracic injuries caused by rib fracture in car crashes, a finite element model of human ribs having the features of human anatomy structure are established and verified based on the CT scanning on a 50 percentile Chinese male volunteer. To improve the model’s biological fidelity, the material parameters of ribs are gain by reverse experiment of animal tissue. The model are verified by the load experiment of human body ribs and compared with the simulation data which the material parameters were cited direct from the reference. The results show that the reaction force-displacement curve agree well with the experimental curve and the model has a better biological fidelity when the material parameters were get from the reverse engineering method.

Key words: vehicle safety, biomechanical model, human rib, parameters reverse method

陈吉清李伟刘卫国兰凤崇马正伟. 基于参数反求的汽车乘员肋骨有限元模型研究[J]. , 0, (): 0-0.

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[1]	陈吉清, 李伟, 刘卫国, 兰凤崇, 马正伟. 基于参数反求的汽车乘员肋骨有限元模型[J]. 吉林大学学报(工学版), 2014, 44(2): 318-324.
[2]	唐洪斌，王登峰 . 前端结构对正面安全气囊不起爆速度阈值的影响[J]. 吉林大学学报(工学版), 2008, 38(04): 773-777.