摘要
排气噪声是汽车的主要噪声源之一,往往比内燃机本体噪声高出10~15dB。使用合适的消声器是控制和降低排气噪声的有效手段,因而对排气消声器的研究越来越成为汽车排气噪声控制的热点。文章从实用性角度和声学原理出发,分析了一种普适性消声器结构及其降噪机理,并通过实验进行了有效验证。
Exhaust noise is one of the main noise sources of automobile,which is 10-15db higher than that of internal combustion engine.Using appropriate exhaust muffler is an effective means to control and reduce exhaust noise,so the research on exhaust muffler is becoming more and more popular.In this paper,the noise reduction mechanism of a universal muffler is analyzed from the perspective of acoustic principle,muffler structure and ergonomics,and is verified by experiments.
作者
卢彦群
杨波
Lu Yanqun;Yang Bo(Hebei University of Engineering,Hebei Handan 056038)
出处
《汽车实用技术》
2021年第2期80-83,共4页
Automobile Applied Technology
基金
河北省科技厅重点项目-大智移云应用专项-圆锥滚子轴承双层复合智能化生产线研发:18211832D
河北省教育厅重点项目-面向新工科基于TRIZ的大学生创新培养模式研究:2019GJJG250。
关键词
汽车噪声
消声机理
实验验证
Automobile noise
Muffler mechanism
Experimental verification
