汽车工程

汽车工程 ›› 2019, Vol. 41 ›› Issue (4): 411-416.doi: 10.19562/j.chinasae.qcgc.2019.04.008

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正面碰撞前后双气室气囊的设计与优化*

葛如海1,2, 顾瑶芝1, 蔡朝阳1, 黄可鑫1, 陈宇航1   

  1. 1.江苏大学汽车与交通工程学院,镇江 212013;
    2.硅湖职业技术学院,昆山 215332
  • 出版日期:2019-04-25 发布日期:2019-05-20
  • 通讯作者: 顾瑶芝,硕士研究生,E-mail:923254664@qq.com
  • 基金资助:
    *江苏大学高级人才科研启动基金(15JDG167)资助

Design and Optimization of a Tandem Airbag with Double Chambers for Frontal Crash

Ge Ruhai1,2, Gu Yaozhi1, Cai Chaoyang1, Huang Kexing1 & Chen Yuhang1   

  1. 1.School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013;
    2.Silicon Lake College, Kunshan 215332
  • Online:2019-04-25 Published:2019-05-20

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摘要： 针对大体型乘员易击穿气囊的问题,设计了一款新型的前后双气室安全气囊,提高对大体型乘员的保护效果。首先基于MADYMO建立某A级车的乘员约束系统模型,通过仿真和试验验证其有效性。接着以经验证的汽车正面碰撞模型为基础,建立一个装有前后双气室气囊的正面碰撞模型,并对该模型进行正面碰撞仿真。最后利用正交试验对双气室气囊的参数进行优化。结果表明:优化后双气室气囊的大体型乘员加权伤害指标值WIC较传统单气囊降低了30.7%,显著提高了约束系统的安全性能。

关键词: 正面碰撞, 前后双气室气囊, 正交试验, 优化

Abstract: Aiming at the problem that traditional airbag is prone to puncture by the impact of occupants large in stature, a novel tandem airbag with double chambers is designed to enhance its protection effects for passengers large in stature. Firstly a model for the occupant restraint system of an A-class car is built based on MADYMO and its effectiveness is verified by simulation and test. Then on the basis of the model for vehicle frontal crash verified, a frontal crash model with tandem airbag is established, on which a frontal crash simulation is conducted. Finally the parameters of tandem airbag are optimized by orthogonal test. The results show that the tandem airbag optimized makes the WIC for the occupant large in stature reduce by 30.7% compared with traditional airbag, significantly enhancing the safety performance of occupant restraint system.

Key words: frontal crash;tandem airbag with double chambers, orthogonal test, optimization