摩托车加速行驶噪声控制的声强实验研究

Experimental Study on Sound Intensity Technique in Acceleration Running Noise Control for Motorcycle

对摩托车加速行驶噪声声压级达到最大时的噪声进行频谱分析,研究其噪声特性,并确定了声强实验的工况。用声强法识别出了主要的噪声源,通过对主要部位声强的频谱分析及进、排气噪声的性能分析,进一步研究了噪声源的噪声特性,为加速行驶噪声控制提供了依据。

Spectrum analysis is carried out running noise achieves its maximum, then the when Sound Pressure Level of motorcycle acceleration noise characteristic is studied on, and the working condition of Sound intensity measurement is determined. Sound intensity technique is applied to identify the main noise sources of the motorcycle, and then characteristic of noise resource is further researched on throng spectrum analysis of main part＇s sound intensities and performance of intake/exhaust noise, a basis is provided for controlling the acceleration running noise of motorcycle.