仪表板副安全气囊高温爆破失效模式及改善措施  

Failure mode and improvement measures of high temperature explosion of instrument panel passenger airbag

作　　者：赵广立 Zhao Guangli(North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学,北京102206

出　　处：《汽车知识》2024年第12期122-124,共3页AUTOMOTIVE KNOWLEDGE

摘　　要：近年来,安全气囊几乎成为汽车仪表板的标准配置,安全气囊通过焊接到仪表板横梁上的安装支架直接装配到仪表板本体上,在仪表板本体相应区域进行弱化处理,且仪表板正面看不到弱化痕迹。高温下,爆破时气囊框飞出,导致高温爆破试验失败。通过在气囊框顶部增加焊接筋数量和焊接筋厚度,然后,使用计算机辅助工程仿真分析,同时气囊框增加织布结构,最后高温爆破试验顺利通过。本文探讨了仪表板副安全气囊高温爆破失效模式及改善措施。In recent years,airbags have almost become a standard configuration for car instrument panels.The airbags are directly assembled to instrument panel body through brackets welded to cross car beam,and weakened in the corresponding area of the instrument panel body,with no visible weakening marks on the front of the instrument panel.At high temperatures,the airbag frame flew out during the explosion test,resulting in the failure of the high-temperature explosion test.By increasing the number and thickness of welding ribs at the top of the airbag frame,and using CAE simulation analysis,at the same time adding a weaving cloth structure to the airbag frame,the high-temperature explosion test was successfully passed.This paper discusses the hightemperature burst failure mode of the instrument panel secondary airbag and improvement measures.

关 键 词：仪表板 安全气囊 计算机辅助工程仿真分析 高温爆破试验 

分 类 号：U467[机械工程—车辆工程]