| 女性骨盆三维有限元模型构建及其侧面碰撞分析 |
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| 引用本文： | 阮世捷,姜颖飞,李海岩,贺丽娟.女性骨盆三维有限元模型构建及其侧面碰撞分析[J].中国生物医学工程学报,2011,30(3). |
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| 作者姓名： | 阮世捷 姜颖飞 李海岩 贺丽娟 |
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| 作者单位： | 天津科技大学机械工程学院损伤生物力学与车辆安全工程中心,天津,300222 |
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| 基金项目： | 天津市应用基础及前沿技术研究计划项目 |
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| 摘 要： | 乘员骨盆损伤在车辆侧面碰撞中非常常见,研究骨盆在侧碰中的损伤机理,有助于优化汽车保护装置,提高乘员的安全性.本研究根据CT图片提取相关数据,利用逆向工程软件生成骨盆几何模型,用有限元前处理软件划分网格,构建一个中国50百分位女性骨盆的三维有限元模型,并用Guillemot尸体实验结果验证了模型的有效性.然后用该模型进行侧碰仿真模拟,研究骨盆在侧面碰撞中的响应及密质骨厚度对骨盆刚性的影响.结果表明,女性骨盆在侧面碰撞中发生骨折的临界撞击力为3.00kN;密质骨厚度不同,骨盆受到载荷时的响应也不同,密质骨厚度为l mm时,前下髂骨脊位移为9.75 mm,密质骨厚度为2 mm时,前下髂骨脊位移为5.35 mm.表明密质骨厚度越薄,骨盆刚性越低.
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| 关 键 词： | 骨盆 有限元模型 侧面碰撞响应 密质骨厚度 |
The Establishment and Side Impact Simulation of a Three-dimensional Finite Element Model of the Chinese Female Pelvic |
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| RUAN Shi-Jie,JIANG Ying-Fei,LI Hai-Yan,HE Li-Juan.The Establishment and Side Impact Simulation of a Three-dimensional Finite Element Model of the Chinese Female Pelvic[J].Chinese Journal of Biomedical Engineering,2011,30(3). |
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| Authors: | RUAN Shi-Jie JIANG Ying-Fei LI Hai-Yan HE Li-Juan |
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| Institution: | RUAN Shi-Jie JIANG Ying-Fei LI Hai-Yan HE Li-Juan(Center Injury Biomechanics and Vehicle Safety Engineering,College of Mechanical Engineering,Tianjin University of Science and Technology,Tianjin 300222,China) |
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| Abstract: | The pelvis injury is common in side impact.The research of pelvis injury could help to design the vehicle safety devices to improve the safety.A three-dimensional finite element model of a 50th percentile Chinese female pelvic was constructed from CT data,using reverse engineering software and mesh created software.And the effectiveness of the model was validated with the experimental data of Guillemot.This model was then used to analyze the response of pelvis in side impact and the influence on pelvic stif... |
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| Keywords: | pelvis finite element model side impact response thickness of cortical bone |
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