摘要
针对某试验样车在喇叭工作状态下离合器踏板产生振动的问题,通过有限元分析和试验测试分别得出传递路径的加速度频率响应函数.通过NVH试验测得离合器踏板处的加速度频率响应,并与用有限元法计算传递函数得到的结果对比,二者吻合较好.在已有设计空间内优化喇叭支架结构,并比较喇叭支架优化前、后离合器踏板处的加速度频率响应.对喇叭支架优化后离合器踏板的加速度频率响应测试结果表明,离合器踏板振动问题基本消除.
As to the vibration of a prototype vehicle clutch pedal under horn working condition,the acceleration frequency response function for transfer path is obtained by finite element analysis and experimental test.The acceleration frequency responses at clutch pedal obtained by NVH test are in good consistence with the results of transfer function calculated by finite element method.The horn bracket structure is optimized in the existing design space,and the acceleration frequency responses at clutch pedal before and after horn bracket optimization are compared.The test results of acceleration frequency responses at clutch pedal after horn bracket optimization show that the vibration problem of clutch pedal is almost solved.
出处
《计算机辅助工程》
2012年第2期56-58,共3页
Computer Aided Engineering
关键词
汽车喇叭
支架
离合器踏板
NVH
振动
传递函数
优化
automobile horn
bracket
clutch pedal
NVH
vibration
transfer function
optimization
作者简介
呼华斌（1983-），男，河南博爱人，研究方向为汽车NVH分析，（E-mail）huhuabin@mychery．com
