乘员侧气囊安装支架结构设计和优化  

Structural Design and Optimization for Bracket of Passenger Airbag

作　　者：赵越 葛如海[2] ZHAO Yue;GE Ruhai(CCCC National Engineering Research Center of Dredging Technology and Equipment Co.,Ltd.,Shanghai 200137,China;Jiangsu University,Zhenjiang,Jiangsu 212013,China)

机构地区：[1]中交疏浚技术装备国家工程研究中心有限公司,上海200137 [2]江苏大学,江苏镇江212013

出　　处：《汽车零部件》2024年第6期1-5,11,共6页Automobile Parts

摘　　要：根据乘员侧气囊和气囊安装支架几何结构划分有限元网格,均采用四边形壳单元网格。对乘员侧气囊和气囊安装支架进行模态分析,对安装支架强度进行分析。降低气袋质量和增加安装支架板厚可改善乘员侧气囊模型模态分析结果,但改善效果不明显。通过设计优化安装支架结构可明显改善模态分析结果,提升安装支架强度。采用加强筋结构,可显著提高乘员侧气囊模型的一阶固有频率,避免通过增加毛毡的方式减小共振和噪声。The finite elements of the passenger airbag housing and bracket were meshed based on the geometry structure.The four node membrane elements were applied for the airbag housing and bracket.The passenger airbag housing and bracket modal analysis is performed.The strength of the bracket is analyzed.Reducing airbag mass and increasing bracket material thickness can improve the modal analysis results of the passenger airbag model,but the improvement effect is not so obvious.The modal analysis results can be improved significantly and the strength of the bracket can be enhanced through optimizing the design of the bracket structure.Using stiffener structure can significantly increase the first-order natural frequency of the passenger airbag model,avoiding reducing resonance and noise by adding felt.

关 键 词：气囊安装支架 固有频率 强度分析 优化 

分 类 号：U463[机械工程—车辆工程]