基于某座椅防挥鞭伤性能提升  

Seat Whiplash Injury Performance Improvement

作　　者：岳国辉[1,2] 吕宝锋[1,2] 韩峰[1,2] 陈现岭[1,2] 

机构地区：[1]长城汽车股份有限公司技术中心 [2]河北省汽车工程技术研究中心

出　　处：《汽车工程师》2016年第1期39-43,共5页Automotive Engineer

摘　　要：2015年版C-NCAP评价规程对座椅鞭打试验进行了评价加严的提升。针对某款车型座椅鞭打试验结果进行了2015版法规下的评价分析,识别出关键问题点为颈部伤害指数和上颈部扭矩伤害值偏大。经过理论计算和仿真曲线分析,将头部与头枕间距由70.5 mm降低到25 mm,头枕发泡硬度增加约2.5倍。通过试验验证了改进方案的有效性。可为后续新开发座椅或其他有类似问题的已量产座椅提供设计或问题整改参考。2015 C-NCAP whiplash test evaluation method updating is described in this paper. The paper introduces the detailed evaluation and analysis under 2015 C-NCAP for the whiplash test resuhs of the seat. It is found that the neck injury and upper neck moment criterions were higher. The distance between head and head rest was reduced from 70.5 mm to 25 mm through the theoretical calculation and the simulation analysis, the foam hardness of head Jest increased 2.5 times compared with the original. The optimized method is verified by the test, which will provide some reference for the new development or other modification design.

关 键 词：挥鞭伤 中国新车评价规程 颈部伤害指数 颈部扭矩 

分 类 号：U463.836[机械工程—车辆工程]