燃料电池轿车车内噪声传递路径分析研究  

A Study on the Transfer Path of the Interior Noise of a Fuel Cell Car

作　　者：郭荣[1] 万钢[1] 左曙光[1] 

机构地区：[1]同济大学新能源汽车工程中心,上海201804

出　　处：《汽车工程》2007年第8期635-641,共7页Automotive Engineering

基　　金：国家863项目(2005AA501000);上海市曙光计划(05SG22)资助。

摘　　要：介绍了传递路径分析(TPA)方法,对结构传递和空气传播噪声理论分析和试验方法进行探讨,通过燃料电池轿车怠速工况车内噪声的传递路径试验,测量并计算得到传递函数,结合实际激励进行车内噪声合成,合成结果和原始声音比较接近,结构传递噪声是主要成分,最后通过路径贡献分析识别出主要传递路径。Based on transfer path analysis （TPA） technique presented, the theoretical analysis and test method for the transmission of structure-borne noise and airborne noise are investigated. Then a transfer path test for the interior noise of a fuel cell car （FCC） at idling condition is carried out, and the transfer functions are measured, with which and combined with actual excitation data, a synthesis of interior noise is conducted. The results show that the synthesized noise is very close to the original one and that the structure-borne noise is the main contri bution of the interior noise of the FCC. Finally, the main transfer paths of noise are identified by using path contribution analysis.

关 键 词：燃料电池轿车 车内噪声 传递路径分析 路径贡献分析 

分 类 号：U469.722[机械工程—车辆工程]