耦合空压机通路的商用车进气噪声仿真分析  

Simulation and Analysis of Induction Noise in Commercial Vehicles Coupled with Air Compressor

作　　者：李国军 蔡燿宇 陈书明[2] 赵永南 秦铎 Li Guojun;Cai Yaoyu;Chen Shuming;Zhao Yongnan;Qin Duo(Commercial Vehicle Development Institute,FAW Jiefang Truck Co.,Ltd.,Changchun 130011;Jilin University,Changchun 130022)

机构地区：[1]一汽解放汽车有限公司商用车开发院,长春130011 [2]吉林大学,长春130022

出　　处：《汽车技术》2024年第9期32-37,共6页Automobile Technology

摘　　要：为了对商用车的进气管口噪声进行预测,提出了空压机通路一维仿真模型建立方法,建立空压机-发动机耦合仿真模型,在主要阶次噪声频率点处对噪声频率和噪声幅值进行准确预测,同时对来自空压机和发动机的阶次噪声进行识别。利用耦合模型研究了空压机通路的噪声特点以及在该通路上的降噪措施与效果。结果表明,空压机噪声有着典型的脉冲噪声特点,在处理该种类型的噪声时,不同种类消声器的布置顺序会对最终的消声效果产生明显影响。In order to predict the induction noise of commercial vehicles,a new 1-D simulation model of air compressor is proposed.The Compressor-Engine coupling simulation model can predict the frequency and amplitude of the noise at the main order accurately,and can both recognize the order noise from the air compressor and the engine in the meantime.The characteristic of compressor noise and the noise reduction method of compressor path are studied by this coupling model.The results show that the noise of the compressor has typical pulse noise characteristic.When dealing with this type of noise,the arrangement sequence of different types of mufflers will have a significant impact on the noise reduction effect.

关 键 词：进气噪声 空压机 一维模型 耦合仿真 

分 类 号：U464.141[机械工程—车辆工程]