摘要
针对振动耐久性试验中某车型喇叭系统支架发生的断裂失效问题,建立汽车喇叭支架系统的有限元分析模型,对喇叭支架进行了模态、频率响应及疲劳分析,分析了喇叭支架工作中产生断裂的原因,并提出了结构改进方案。仿真计算和试验结果均表明,新方案的设计满足喇叭支架系统的抗疲劳强度和疲劳寿命的要求,其改进设计方法对类似结构设计具有参考意义。
For the fracture failure problem of vehicle horn bracket in vibration failure test,The finite element analysis model of vehicle horn bracket system is established.The modal analysis,frequency response analysis,failure analysis of the model is conducted and the fracture reasons of horn bracket are obtained.Then we can get the improved design by adjusting local structure of horn bracket.The analysis and test results show that the new design meets horn bracket’s requirements of fatigue strength and fatigue life.Research methods of this paper can be a reference value in similar structure optimization design.
作者
刘庆
李倩
陆志成
LIU Qing;LI Qian;LU Zhi-cheng(College of Vehicle and Transportation Engineering,Henan Institute of Technology,Xinxiang 453003,China;Technology Center,Dongfeng Peugeot Citroen Automobile Company Ltd,Wuhan 430056,China)
出处
《河南工学院学报》
CAS
2020年第3期19-23,共5页
Journal of Henan Institute of Technology
关键词
喇叭支架
振动疲劳
动应力
horn bracket
vibration fatigue
dynamic stress
