温度变化对HⅢ-50%假人胸部位移的影响  

Influence of Temperature on Chest Displacement Variation for HIII-50%Dummies

作　　者：崔新康 王鹏翔[1] 李月明[1] 张毅[1] 商恩义[1] 章健 张荣[1] CUI Xinkang;WANG Pengxiang;LI Yueming;ZHANG Yi;SHANG Enyi;ZHANG Jian;ZHANG Rong(Zhejiang Key Laboratory of Automobile Safety Technology,Geely Automobile Research Institute,Hangzhou 311228,China)

机构地区：[1]浙江吉利汽车研究院有限公司浙江省汽车安全技术研究重点实验室,杭州311228

出　　处：《汽车工程学报》2023年第3期318-325,共8页Chinese Journal of Automotive Engineering

基　　金：浙江省汽车安全技术研究重点试验室开放基金资助项目(GL/20-002X)。

摘　　要：为了研究温度对HⅢ-50%胸部位移的影响,在不同温度下,分别进行了2组假人胸部标定及实车碰撞对比试验。试验结果显示,假人在环境温度下存储较长时间(5 h)后,胸腔温度才和肋骨的真实温度接近。温度变化可以改变假人胸部刚度,导致胸部位移的变化。假人胸部刚度自身存在差异,温度对每个假人胸部位移变化量的影响也不同,每变化1℃对胸部位移产生的影响在1.15 mm左右。胸部刚度的稳定性导致胸部位移产生的偏差占50%左右。因此,在碰撞试验中,应该全流程严格控制环境温度以满足法规要求。假人胸部位移数据产生偏差时,应考虑假人胸部刚度稳定性和温度两个因素。In order to study the effect of temperature on the chest displacement variation for HIII-50%dummies,the paper conducted the actual vehicle crash tests and the dummy chest calibration at different temperatures.It was found that the temperature inside the dummy's chest cavity was close to the temperature of the ribs when the dummy was stored at the ambient temperature for longer than 5 hours.Temperature could change the stiffness of dummy chest,leading to the change in displacement.Each dummy has different chest stiffness,and therefore temperature has different influence on the displacement variation of the dummy.The dummy chest displacement is about 1.15 mm per degree Celsius(mm/℃).50%variation in displacement is produced by the change in chest stiffness.Therefore the ambient temperature should be strictly controlled in the whole process of crash-testing to meet regulatory requirements.The two factors of dummy chest stiffness changes and temperature should be considered for the variation in chest displacement data.

关 键 词：HⅢ-50%假人 胸部位移 胸部标定 实车试验 胸部刚度 

分 类 号：U467.14[机械工程—车辆工程]