制动工况下主动卷收器参数对乘员离位位移影响的分析  

An Analysis on the Effect of Active Retractor Parameters onOccupant's Out-of-position Displacement Under Braking Condition

作　　者：胡远志[1] 朱鸿旭 曾宪菁[2] 王振飞 徐紫红 蒋成约[1] Hu Yuanzhi;Zhu Hongxu;Zeng Xianjing;Wang Zhenfei;Xu Zihong;Jiang Chengyue(Chongqing University of Technology, Key Laboratory of Advanced Manufacturing Technology for Automobile Parts, Ministry of Education,Chongqing 400054;Pan Asia Technical Automotive Center Co., Ltd., Shanghai 201201;TRW Automotive Technologies (Shanghai) Co., Ltd., Shanghai 201814)

机构地区：[1]重庆理工大学汽车零部件先进制造技术教育部重点实验室,重庆400054 [2]泛亚汽车技术中心有限公司,上海201201 [3]天合汽车科技(上海)有限公司,上海201814

出　　处：《汽车工程》2020年第5期615-620,共6页Automotive Engineering

基　　金：国家自然科学基金(51405050);汽车噪声振动和安全技术国家重点实验室2019年度开放基金课题(NVHSKL-201908);重庆市教委科学技术研究项目(KJQN201901141)资助。

摘　　要：主动控制卷收器(ACR)能改善乘员的离位位移并降低二次碰撞的风险。为探究制动工况下ACR对乘员的影响,首先进行志愿者实车道路试验和试验数据的乘员运动响应分析,并建立了包括主动人体模型的仿真模型。模型对标后搭建Kriging近似模型并采用NSGA-Ⅱ算法进行ACR参数优化。结果表明:优化后头部质心和第一胸椎(T1)的离位量分别减小了55%和73.44%,且回弹阶段各部位加速度明显减小,预紧力和乘员离位量呈负相关趋势,且与制动前触发相比,制动后触发ACR时,预紧时间的变化对乘员离位的影响较大。The active control retractor(ACR)is beneficial to the reduction of occupant's out-of-position displacement and the minimization of secondary impact risk.In order to investigate the effect of ACR on occupants in braking conditions,a volunteer real vehicle road test is conducted with occupant kinematics responses analyzed based on test data,and a simulation model including active human model is built.After the verification of simulation model,a Kriging approximation model is set up and an optimization on ACR parameters is conducted using NSGA-II algorithm.The results show that the out-of-position displacements of head mass center and the 1st thoracic spine(T1)are reduced by 55%and 73.44%respectively,the accelerations of all parts are lowered significantly during rebound phase,the pretension force and the occupant's out-of-position displacement shows a tendency of negative correlation,and compared with triggering before braking,the pretensioning time in triggering ACR after braking has a larger effect on the out-of-position displacement of occupant.

关 键 词：主动控制卷收器 实车试验 主动人体模型 预紧参数 

分 类 号：U46[机械工程—车辆工程]