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汽车安全与节能学报

汽车安全与节能学报 ›› 2015, Vol. 6 ›› Issue (01): 51-57.DOI: 10.3969/j.issn.1674-8484.2015.01.006

• 汽车安全 • 上一篇    下一篇

基于离位状态儿童乘员防护的安全气囊优化( 英文)

费 敬1，白中浩2，陈可明1   

  1. 1. 中国汽车工程研究院股份有限公司，重庆401122，中国；
    2. 湖南大学 汽车车身先进设计制造国家重点实验室，长沙410082，中国
  • 收稿日期:2014-08-18 出版日期:2015-03-25 发布日期:2015-04-02
  • 作者简介:费敬(1987 － )，女( 汉)，山东，助理工程师。E-mail: fj1234ff@163.com
  • 基金资助:

    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）

Airbag Optimization for Out-Of-Position Children Occupant#br# Protection

FEI Jing1, BAI Zhonghao2, CHEN Keming1   

  1. 1. China Automotive Engineering Research Institute Co., Ltd., Chongqing 401122, Chongqing, China;
    2. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China
  • Received:2014-08-18 Online:2015-03-25 Published:2015-04-02

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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。

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

Abstract:

An optimization strategy was proposed based on the airbag parameters optimization for outof-
position (OOP) children. According to SAEJ1980-2008 regulation by 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 of Pcomb, with space-filling sampling method. The
results show that the optimal object value meet the regulation requirement basically; protection effect of dualstage
inflator is better than single-stage inflator significantly in 54 km/h frontal test.

Key words: vehicle passive safety, children occupants, out-of-position (OOP), airbag, combined injury
probability, LS-OPT optimization