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汽车侧面和斜碰撞中人体胸部损伤响应数值分析

王方 杨济匡 李桂兵 周水庭 韩勇 李凡

王方, 杨济匡, 李桂兵, 周水庭, 韩勇, 李凡. 汽车侧面和斜碰撞中人体胸部损伤响应数值分析[J]. 力学学报, 2016, 48(1): 225-234. doi: 10.6052/0459-1879-15-265
引用本文: 王方, 杨济匡, 李桂兵, 周水庭, 韩勇, 李凡. 汽车侧面和斜碰撞中人体胸部损伤响应数值分析[J]. 力学学报, 2016, 48(1): 225-234. doi: 10.6052/0459-1879-15-265
Wang Fang, Yang Jikuang, Li Guibing, Zhou Shuiting, Han Yong, Li Fan. NUMERICAL ANALYSIS OF HUMAN THORACIC INJURY RESPONSES IN VEHICLE LATERAL AND OBLIQUE CRASHES[J]. Chinese Journal of Theoretical and Applied Mechanics, 2016, 48(1): 225-234. doi: 10.6052/0459-1879-15-265
Citation: Wang Fang, Yang Jikuang, Li Guibing, Zhou Shuiting, Han Yong, Li Fan. NUMERICAL ANALYSIS OF HUMAN THORACIC INJURY RESPONSES IN VEHICLE LATERAL AND OBLIQUE CRASHES[J]. Chinese Journal of Theoretical and Applied Mechanics, 2016, 48(1): 225-234. doi: 10.6052/0459-1879-15-265

汽车侧面和斜碰撞中人体胸部损伤响应数值分析

doi: 10.6052/0459-1879-15-265
基金项目: 国家自然科学基金(31300784,51205117),厦门理工学院高层次人才科研项目(YKJ15006R)和福建省外专百人计划(闵人外专2015-79,B2015061)资助.
详细信息
    通讯作者:

    杨济匡,教授,主要研究方向:汽车碰撞安全与人体损伤生物力学.E-mail:jikuangyang@hnu.edu.cn

  • 中图分类号: U461.91

NUMERICAL ANALYSIS OF HUMAN THORACIC INJURY RESPONSES IN VEHICLE LATERAL AND OBLIQUE CRASHES

  • 摘要: 车辆侧面和斜碰撞在导致乘员严重损伤的交通事故中占有相当大的比例, 但与正面碰撞事故研究相比仍缺少对车内乘员在侧面和斜碰撞中的胸部损伤生物力学的深入研究. 因此本文采用数值模型来分析这两种碰撞载荷下的人体胸部生物力学响应以及损伤相关的物理参数. 首先, 将自主开发验证的胸部、头颈部和下肢有限元模型相结合, 建立了一个完整的人体坐姿有限元模型;然后, 采用该坐姿模型模拟了文献中的7例尸体胸部侧面碰撞和斜碰撞实验;仿真计算获得的碰撞力、胸部变形量和力-变形等损伤相关的响应曲线都在对应的生物力学实验曲线走廊范围内;仿真与实验结果对比表明了坐姿模型的有效性;从仿真结果发现碰撞力峰值较接近于实验结果的较大值, 而变形量趋向于实验结果的较小值;同时, 侧面碰撞条件下所得到的碰撞力峰值比斜碰撞中稍大, 峰值出现的时刻较早;而侧面碰撞中胸部变形量峰值比斜碰撞中较小, 出现的时刻同样较早, 这与实验结果所呈现的趋势一致. 分析说明在相同载荷强度下侧面碰撞胸部耐受限度高于斜碰撞时的耐受限度. 该胸部有限元模型可较准确地再现侧面碰撞和斜碰撞生物力学实验中的胸部响应过程, 具有较好的生物逼真度, 可进一步用于侧面碰撞和斜碰撞中乘员胸部损伤生物力学研究.

     

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出版历程
  • 收稿日期:  2015-07-15
  • 修回日期:  2015-09-23
  • 刊出日期:  2016-01-18

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