车内噪声传递路径分析方法探讨  

Study on Transfer Path Analysis Method of Automobile Interior Noise

作　　者：郭荣[1] 万钢[1] 赵艳男[1] 周江彬[1] 

机构地区：[1]同济大学新能源汽车工程中心,上海201804

出　　处：《振动．测试与诊断》2007年第3期199-203,共5页Journal of Vibration,Measurement & Diagnosis

基　　金：国家"八六三"基金资助项目(编号:2005AA501000)

摘　　要：为了指导汽车NVH工程师更好地进行故障诊断和声学设计,介绍了传递路径分析(TPA)方法的基本原理,详细分析传递函数和激励力的测量方法,并以某型汽车发动机振动噪声向车内传递为例,介绍TPA方法的应用。试验结果表明,应用TPA方法可有效、方便地进行噪声源识别和贡献分析。In order to help NVH engineers to perform trouble shooting and sound design more precisely and efficiently,the principle of transfer path analysis(TPA) is introduced and the measurement methods of transfer path and practical excitation are detailedly analyzed.The application of the method is validated through one typical case of noise and vibration of engine transmitting to compartment.The test results show that it can help engineers perform noise source recognition and noise contribution analysis effectively and conveniently.

关 键 词：车内噪声 传递路径分析 传递函数 激励力 贡献分析 

分 类 号：U461.3[机械工程—车辆工程]