噪声与振动控制2017，Vol.37Issue(3)：189-192,4.DOI:10.3969/j.issn.1006-1355.2017.03.038
一种进气消声器设计及其在拖拉机中的应用
Design of a Broadband Intake Muffler and Its Application in Tractors
摘要
Abstract
The noise in the engine intake system of a tractor is overlarge, which seriously affects physical and mental health of drivers. So, it is necessary to make a noise reduction design. Firstly, the intake noise characteristics are analyzed based on experimental tests. Secondly, based on the theory of straight-through perforation tube, the perforation tube is treated as a resonant silencing element. A multi-cavity resonance-type silencing structure is proposed for broadband noise reduction. Meanwhile, the Virtual.Lab software is used to simulate the acoustic performance of the muffler. Finally, the muffler is assembled into the tractor to verify the effectiveness of the proposed structure. It is shown that the numerical simulation results agree well with the experimental results. The designed muffler can effectively reduce the intake system noise and the amount of noise elimination can achieve 15 dB(A), which is superior to the requirement of the national standard.关键词
声学/进气消声器/拖拉机/宽频带/仿真分析/试验Key words
acoustics/intake muffler/tractor/broad band/simulation analysis/experiment分类
通用工业技术引用本文复制引用
谭延峥,李舜酩,程春,张宗振..一种进气消声器设计及其在拖拉机中的应用[J].噪声与振动控制,2017,37(3):189-192,4.基金项目
国家重点研发计划课题资助项目(2016YFD0700803) （2016YFD0700803）
