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汽车的发明给人类社会带来了巨大进步和便利,但同时引发的交通事故造成大量的人员伤亡与经济损失.本论文采用医学CT/MRI扫描获得人体主要组织的几何参数,采用有限元仿真分析工具建立人体有限元生物力学模型,结合文献已有的组织材料实验与尸体实验对模型进行仿真验证,模型验证参考了尸体实验数据进行了正面碰撞和侧面碰撞的仿真验证,碰撞中接触力、胸骨位移量、力-位移响应与实验吻合较好.开展了汽车方向盘与胸部碰撞的仿真应用研究,方向盘冲击作用于人体的生物力学响应与损伤特性符合真实事故中的变形规律,能再现肋骨骨折及内脏损伤,模型可应用于汽车碰撞事故中人员的损伤评估研究.
The invention of automobile has brought great progress and convenience to human society, but at the same time, traffic accidents caused a great deal of casualties and economic losses.In this thesis, the geometric parameters of human body tissues were obtained by medical CT / MRI scanning, and the finite element simulation The finite element biomechanical model of human body was established by the finite element method. The existing tissue material experiments and autopsy experiments were carried out to verify the model. The model validation was done with reference to the experimental data of the corpse. The frontal impact and side impact simulation were validated. The contact force, sternum Displacement and force-displacement response are in good agreement with the experimental results.Studies on the application of the steering wheel and the chest collision simulation are carried out. The biomechanical response and damage characteristics of the steering wheel impact on the human body conform to the deformation rules in real accidents, Visceral injury, the model can be applied to the car crash accident assessment of the damage of personnel.