混合Ⅲ型第50百分位假人头部跌落试验影响因素探究  

An Investigation into the Influence Factors of the Head Drop Test for the 50th Percentile Hybrid Ⅲ Dummy

作　　者：曹立波[1] 张恺[1] 吕鑫[1] 颜凌波[1] 盛文 

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 [2]湖南赛孚汽车科技有限公司,长沙410082

出　　处：《汽车工程》2016年第3期302-307,共6页Automotive Engineering

基　　金：国家自然科学基金(11172099);湖南大学汽车车身先进设计制造国家重点实验室开放基金(31575005)资助

摘　　要：假人头部标定试验结果对保证汽车碰撞测试过程中假人头部响应的可信性有重要影响。使用控制变量法研究了头盖紧固力矩、头部Y轴偏角、头部质量、刚性表面偏角和滑石粉等因素对标定结果的影响。结果表明:头盖紧固旋转力矩对于头部标定结果影响较小;而合成加速度会随着头部质量的降低呈现增加的趋势;在头皮与头骨之间擦拭滑石粉会使合成加速度峰值降低约4%。标定试验结果对头部Y轴偏角和刚性平面偏角两个因素较为敏感,因此需要采用更精确的测量仪器来使这两个角度接近标称值。The results of dummy head calibration test have a significant effect on ensuring the credibility of dummy＇s head response in collision test. Control variate method is used to study the effects of the fastening torque of skull cap,the Y-axis angle of head,the mass of head,the angle of rigid surface and the use of talcum powder on calibration results. The results show that the fastening torque of skull cap has only a minor effect on test results.With the reduction of head mass,the resultant acceleration tends to increase. Putting talcum powder on between skull and head skin leads to a 5% reduction of the peak resultant acceleration. The results of calibration test are more sensitive to the Y-axis angle of head and the angle of rigid surface. Therefore,it is essential to adopt more accurate instrument to ensure the values of these two angles close to their normal ones.

关 键 词：假人头部 标定试验 影响因素 

分 类 号：U467.14[机械工程—车辆工程]