湖北汽车工业学院学报2023，Vol.37Issue(4)：1-5,16,6.DOI:10.3969/j.issn.1008-5483.2023.04.001
基于儿童头部保护的发动机罩材料轻量化
Material Lightweighting of Engine Hood Based on Children Head Protection
摘要
Abstract
According to the equivalent stiffness replacement theory,the feasibility of replacing steel en-gine hood with aluminum or carbon fiber composites was studied to achieve the lightweight with re-duced children's head injury criteria(HIC).Based on 2018 edition C-NCAP,explicit solution tech-niques were used to simulate and calculate the HIC and acceleration waveforms at different collision points.Results indicate that the replacement with an aluminum engine hood increases the HIC.On the other hand,the replacement with a carbon fiber composite engine hood results in a head acceleration waveform featuring shorter peak duration,earlier arrival time,and larger lateral deformation range,with more extensive material involved in absorbing collision energy to effectively reduce the HIC,as well as a weight reduction by 34.8%.关键词
儿童头部保护/发动机罩/碳纤维复合材料/轻量化Key words
children head protection/engine hood/carbon fiber composite/lightweighting分类
交通工程引用本文复制引用
王兴东,郝琪,张旺,唐有镜..基于儿童头部保护的发动机罩材料轻量化[J].湖北汽车工业学院学报,2023,37(4):1-5,16,6.基金项目
国家自然科学基金(51975057,11502075) （51975057,11502075）
