声全息方法识别汽车运动噪声

An Application of Acoustic Holography to Noise Source Identification on Moving Vehicle

本文提出利用声全息原理,对运动状态下的汽车噪声源进行识别的方法。它能够用来分析汽车在高速运动过程中发动机的噪声、轮胎噪声和空气动力学噪声。通过低速和高速实验表明该方法是一种有效的方法,能够快速、准确识别运动车辆的噪声。

This paper presents the acoustical holography method which can be used to identify noise source on a moving vehicle. Using acoustical holography, some interesting results are shown about the different noises of a high speed vehicle, such as engine noise, tire noise and aerodynamic noise. The results proved that the acoustical holography is an effective method in identification of noise source on a moving vehicle.