能够模拟颈部肌肉主动力的混合假人模型.PDF

ISSN 1674-8484 汽车安全与节能学报, 2015 年, 第6 卷 第3 期 07/ 13 CN 11-5904/U J Automotive Safety and Energy, 2015, Vol. 6 No. 3 245—249 能够模拟颈部肌肉主动力的混合假人模型 李 凡，胡 伟，粟思橙，曹迎春 （湖南大学 汽车车身先进制造国家重点实验室，长沙410082 ，中国） 摘 要： 构建了具有颈部肌肉精确几何结构和主被动响应的混合假人有限元(FE) 模型，以便研究前碰 撞形式下，肌肉作用下的颈部损伤机理，这对于汽车乘员保护安全性设计很重要。用已建立并验证 的50百分位男性有限元头颈部生物力学模型，来替换50百分位男性Hybrid Ⅲ假人原有头颈部；采 g 用美国海军生物力学实验室15 前碰撞志愿者台车实验数据，对该模型进行验证。结果表明：模型 输出的头部质心线加速度、角加速度、头部转动角度、以及颈部转动角度，均能较好地拟合实验通 道曲线。因此，该模型可用于车辆交通事故中人体头颈部损伤生物力学研究。 关键词： 汽车安全性；被动安全；前碰撞；生物力学；头颈部有限元模型；肌肉主动力；混合假人 中图分类号： U 461.91 文献标识码： A DOI: 10.3969/j.issn.1674-8484.2015.03.007 Mixed dummy model with neck muscle force activation simulation LI Fan, HU Wei, SU Sicheng, CAO Yingchun (Mechanical and Vehicle Engineering Institute, Hunan University, Changsha 410082, China) Abstract: A mixed finite element (FE) dummy model was developed with precise neck muscle geometry as well as active and passive muscle behavior to investigate neck injury mechanism with muscle activation in front collision which is important to the design of occupant safety. The model was based on the 50th Hybrid III dummy with the head and neck replaced by a well-validated biomechanical model. The data of volunteer trolley collision experiments with a deceleration of 15g, conducted by US Navy Biomechanics Laboratory, was used for model validation. The results show that the model has a good biofidelity, according to the outputs of head linear acceleration, angular acceleration and rotational angles of head and neck compared to the volunteer tests. Therefore, t