【作者】 申秀敏； 左曙光； 李林； 张世炜；

【Author】 Shen Xiumin;Zuo Shuguang;Li Lin;Zhang Shiwei;School of Automobile,Tongji University;

【机构】 同济大学汽车学院；

【摘要】 本文以燃料电池车为例进行车内空气传递噪声的传递路径分析。应用了传统的传递路径分析方法、声学互易法,同时提出单频下以及主要频段内不同噪声源路径贡献量计算方法。通过对车内空气声的传递路径试验,测量和计算出不同路径的声学传递函数;并结合实际工况对车内空气声进行合成;对不同路径的贡献进行了分析,识别出燃料电池车车内空气传递噪声的主要传递路径,为燃料电池车的减振降噪措施的实施指明了方向。更多还原

【Abstract】 This paper take fuel cell vehicle as an example,carried out interior noise transfer path analysis.Application of the traditional method of transfer path analysis,acoustic reciprocity law,proposed path contribution calculation method under single-frequency and the main frequency band.Through transfer path test of interior noise of fuel cell vehicle,measured and calculated acoustic transfer function of different paths;synthesis interior air-borne noise with actual excitation data;analysis different paths contribution,and identified the main transfer path,which is useful for fuel cell vehicle noise reduction.更多还原