建立人体头颈动力学有限元模型和验证

发布时间：2018-10-24 11:49

【摘要】：目的建立符合解剖结构的头颈三维动力学有限元模型,研究冲击力作用下头颈部动力学响应。方法采用中国成年男性志愿者颈部CT扫描图像,获取颈椎三维点云数据,通过有限元前处理软件ICEM-CFD和Hyper Mesh建立颈部有限元模型。模型包括椎骨、椎间盘、小关节、韧带和软骨等组织,结合已建立并验证的头部有限元模型,装配成具有详细解剖结构的人体头颈部有限元模型。结果模型参考公开发表的头颈部轴向冲击实验数据进行验证,其颈部变形、头部加速度、接触力曲线以及损伤部位与实验数据吻合较好。结论动力学三维有限元模型可用于汽车安全、运动学损伤等领域人体头颈部的动态响应和损伤机制研究。
[Abstract]:Objective to establish a three-dimensional dynamic finite element model of head and neck in accordance with anatomical structure and to study the dynamic response of head and neck under impact force. Methods the cervical CT images of Chinese adult male volunteers were used to obtain 3D point cloud data of cervical vertebrae. The cervical finite element model was established by ICEM-CFD and Hyper Mesh. The model consists of vertebrae intervertebral disc facet joint ligaments and cartilage. Combined with the established and verified finite element model of the head the finite element model of head and neck with detailed anatomical structure is assembled into the finite element model of human head and neck. Results the model was verified by referring to the published experimental data of axial impact on the head and neck. The deformation of the neck, the acceleration of the head, the contact force curve and the location of the injury were in good agreement with the experimental data. Conclusion the dynamic three dimensional finite element model can be used to study the dynamic response and damage mechanism of human head and neck in the field of automobile safety and kinematics.
【作者单位】：湖南科技大学机电工程学院;同济大学附属上海市养志康复医院(上海市阳光康复中心);湖南大学汽车车身先进设计制造国家重点实验室;
【基金】：博士后面上项目(2016M592421) 国家自然科学基金项目(51405153) 湖南省科技支撑计划重点项目(2015NK3031) 湖南省重点研发计划(2016GK2077) 湖南省教育厅重点项目(17A068)
【分类号】：R318.01

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