主驾侧顶置式气囊概念设计及CAE分析  

Conceptual Design and CAE Analysis of the Main Driving Side Overhead Airbag

作　　者：张海洋 王金 周大永 李军 胡远志 ZHANG Haiyang;WANG Jin;ZHOU Dayong;LI Jun;HU Yuanzhi(Geely Automobile Engineering Research Institute,Hangzhou 311228,China;Chongqing University of Technology,Institute of Vehicle Engineering,Chongqing 400054,China)

机构地区：[1]吉利汽车工程研究院,杭州311228 [2]重庆理工大学车辆工程学院,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2020年第10期91-97,共7页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金项目(51405050);重庆市教委科学技术研究项目(KJQN201901141);浙江省汽车安全技术研究重点实验室开放基金项目(2009E10013)。

摘　　要：针对某车型自动驾驶需求,基于企业已有的某车型主驾侧约束系统MADYMO仿真模型,开展新型乘员舱顶置式气囊的概念设计与CAE设计分析(包括折叠方式、布置位置等),评估不同折叠方式对防护性能的影响;基于乘员头部、胸部、颈部伤害指标开展气囊接触刚度优化。结果表明:气囊动态刚度适当提升能有效降低乘员的颈部伤害,提高C-NCAP(China-new car assessment program)正面碰撞工况的乘员得分。This project aims at the conceptual design and CAE analysis(including folding type and positioning,etc.)of a new passenger overhead airbag according to the automatic driving requirement,based on our original vehicle restraint system MADYMO simulation model,and different folding types’effects on the protective performance were evaluated.Finally,the optimization of the overhead airbag focusing on the injury indexesof the occupant’s head,chest and neck regions was carried out.The results show that the proper increase of the airbag’s dynamic stiffness can effectively reduce occupant neck injury and improve the C-NCAP(China-new car assessment program)occupant score under frontal impact condition.

关 键 词：顶置式气囊 MADYMO仿真 参数分析 乘员伤害 

分 类 号：U467.1[机械工程—车辆工程]