油锯微穿孔报消声器的设计研究

A Study on the Mufflers with Small Holes for the YH2.5 and YJ4 Chain Saws

在对ＹＨ２．５和ＹＪ４油锯噪声及其控制进行试验研究和推广应用的基础上，指出油锯进、排气噪声是居支配地位的噪声源．采用计算机辅助设计技术研制的微穿孔板消声器，在实际应用中降噪效果明显．

On the basis of the studies on the noise of the YH2.5 and YJ4 chain saws, this paper points out that the intake and exhaust noises of the chain saws are the dominant noises sourses and that making small, with small holes made by CAD prove to be satisfactory.