基于离位状态儿童乘员防护的安全气囊优化（英文）  

Airbag Optimization for Out-Of-Position Children Occupant Protection

作　　者：费敬 白中浩[2] 陈可明[1] 

机构地区：[1]中国汽车工程研究院股份有限公司 [2]湖南大学汽车车身先进设计制造国家重点实验室

出　　处：《汽车安全与节能学报》2015年第1期51-57,共7页Journal of Automotive Safety and Energy

基　　金：国家自然科学基金资助项目(51105137);国家"八六三"高技术研究发展项目(2012AA111802)

摘　　要：提出了一种离位状态(OOP)儿童安全气囊参数优化策略。根据美国机动车工程师学会的SAE J1980-2008法规,建立了典型的3岁和6岁离位儿童乘员多刚体MADYMO-有限元仿真模型。以乘员综合损伤评价指标(Pcomb)为目标函数,安全气囊参数为设计变量,采用最小二及乘优化设计和概率分析软件LS-OPT对选取的变量进行优化,选用空间填充试验设计采取样本点,采用混合自适应模拟退火算法对响应面模型进行优化使Pcomb最小。对比了双级和单级气体发生器气囊在低速和高速对假人损伤的影响。结果表明:综合损伤指标基本满足US-NCAP法规的要求;在54 km/h正面碰撞时,双级气囊对假人的保护作用明显优于单级气囊。An optimization strategy was proposed based on the airbag parameters optimization for out-of-position （OOP） children. According to SAEJ1980-2008 regulationby Society of Automotive Engineers, MADYMO （mathematical dynamic Model） was used to establish a Multi-body and Finite Element （FE） model for two OOP children aged 3 and 6 years old. The combined injury probability （Pcomb） of occupants was considered as object function in reference to the US-NCAP regulation, and variables were optimized by LS-OPT （Least Squares ＋ Design Optimization and Probabilistic Analysis） software. The optimization was performed using hybrid simulated annealing algorithm to minimize the value ofPcomb, with space-ifling sampling method. The results show that the optimal object value meet the regulation requirement basicaly; protection effect of dual-stage inlfator is better than single-stage inlfator signiifcantly in 54 km/h frontal test.

关 键 词：汽车被动安全 儿童乘员 离位状态(OOP) 安全气囊 综合损伤指标 LS-OPT优化 

分 类 号：U461.91[机械工程—车辆工程]