Q6儿童假人头部有限元模型的建立及验证  

Finite Element Model for Child Dummy Head of Q6 and Validation

作　　者：曹立波[1] 周加冬[1] 吴俊[1] 崔崇桢[1] 张恺[1] 

机构地区：[1]湖南大学汽车车身先进设计制造国家重点实验室,长沙410082

出　　处：《机械科学与技术》2016年第4期620-625,共6页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家高技术研究发展计划(863计划)项目(2012AA111802)资助

摘　　要：运用逆向工程方法获得Q6儿童假人头部几何模型并对其进行合理的网格划分,保证该模型具有良好细节和较高精度,同时赋予合理的材料模型。以真实假人头部标定试验结果为基准,采用基于纵坐标的曲线匹配法,对该头部有限元模型头部皮肤材料模型参数进行正面和侧面标定试验两种工况的多目标优化,通过空间缩减序列的响应面法经多次迭代获得优化结果,作为头部皮肤的材料参数。仿真结果显示该有限元模型较好地满足了Q6儿童假人头部标定要求。The reverse engineering was used to establish a geometric model for child dummy head of Q6, then a detailed and high-quality Q6 child dummy head finite element （FE） model was developed with proper material models. Based on the calibration test results of a physical dummy head, the ordinate-based curve matching method was applied to the multi-objective optimization of the material model parameters of head skin of the FE model in both frontal and side calibration tests, and optimal results were acquired after several iterations by sequential with domain reduction metamodel-based optimization method. The optimized results were used as material parameters of head skin, and the simulation shows that the FE model for child dummy head of Q6 meets the requirements of calibration quite well.

关 键 词：Q6儿童假人头部 逆向工程 曲线匹配 多目标优化 

分 类 号：U461.91[机械工程—车辆工程]