拖拉机消声器消声性能仿真分析  

Simulation Analysis of Tractor Muffler Noise Reduction Performance

作　　者：王国虎 王冠霖 段嘉轩 孙维连 王婷 Wang Guo-hu;Wang Guan-lin;Duan Jia-xuan;Sun Wei-lian;Wang Ting(Zhengzhou University of Industrial Technology,Henan Zhengzhou 451100;Cangzhou Aviation Vocational College,Hebei Cangzhou 061001)

机构地区：[1]郑州工业应用技术学院,河南郑州451100 [2]沧州航空职业学院,河北沧州061001

出　　处：《内燃机与配件》2024年第22期64-66,共3页Internal Combustion Engine & Parts

基　　金：河南省高校重点科研项目(23B460003/23B460007);新一轮河南省重点学科(机械)教研[2023]414号;河南省隧道工程机械工程技术研究中心豫科实〔2022〕1号;教育部产学合作协同育人项目(220801473205847)。

摘　　要：拖拉机是一种重要的农业机械,在农业生产中被广泛使用。工作时排气管产生的噪声极大地影响操作者的健康,现有的消声器体积较大,中低频降噪效果不足,且拖拉机的废气有复杂化学成分和较高的温度,长期使用,容易氧化腐蚀。本文结合理论分析与仿真对消声器进行结构设计,并对排气阻力进行流体力学分析,获得一种降噪效果好、排气阻力小的消声器模型。Tractor is an important agricultural machinery,which is widely used in agricultural production.The noise produced by the exhaust pipe during operation affects the health of the operator.The existing muffler is large in volume,and the noise reduction effect of middle and low frequency is insufficient.Moreover,the exhaust gas of the tractor has complex chemical composition and high temperature.In this paper,the structure design of the muffler is combined with theoretical analysis and simulation,and the fluid mechanics analysis of the exhaust resistance is carried out,and a muffler model with good noise reduction effect and small exhaust resistance is obtained.

关 键 词：农业机械 结构设计 理论分析 流体力学分析 

分 类 号：TK423[动力工程及工程热物理—动力机械及工程]