汽车车内噪声测试与分析  

Test and Analysis of Inner Noise of Automobiles

作　　者：刘宗财[1] 刘岩[1] 贾艳宾[2] 李博学[2] 张晓娟[3] 杨冰[4] 

机构地区：[1]大连交通大学交通运输工程学院,辽宁大连116028 [2]长城汽车股份有限公司,河北保定071000 [3]大连科技学院机械工程系,辽宁大连116052 [4]大连交通大学机械工程学院,辽宁大连116028

出　　处：《噪声与振动控制》2013年第5期82-85,共4页Noise and Vibration Control

基　　金：大连市科技计划项目:(2011E13SF049)

摘　　要：在不同工况下对试验样车车内的不同位置进行噪声测量和分析,研究车内噪声的分布规律。通过数据分析得出:车速度每升高10 km/h,频率范围在125～200 Hz和800～2 000 Hz,车内噪声增加4 dB;噪声在前后排座椅处存在差距,风噪声会使左右耳噪声值产生差距,差距会随着车速产生先变大后变小的规律;三厢车后排座椅噪声状况比两厢车要好。该研究结果对汽车减振降噪设计具有一定参考价值。Noise of different positions inside a car were tested and analyzed, and the noise distribution was researched. The results show that the inner noise is increased by 4 dB （A） with the car＇ s speed raised by 10 km/h. Noises are different between front seat and back seat, and their frequency ranges of the noises are 125-200 Hz and 800-2 000 Hz respectively. Wind noise can make difference of the noise between left and right ears. This difference increases initially and then decreases with the increasing of the car＇ s speed. Sedan car＇ s noise situation of the back seat is better than that of Hatchback car＇ s. These results are of reference value in noise control design of automobiles.

关 键 词：声学 汽车 车内噪声 分布规律 

分 类 号：U467.493[机械工程—车辆工程]