二级电动活塞式空压机气动噪声特性分析与优化  

Analysis and Optimization of Aerodynamic Noise Characteristics of Double-stage Electric Air Compressors

作　　者：沈逸 杨正银 孙小庆 苑庆泽 梁华芳 忽伟 SHEN Yi;YANG Zhengyin;SUN Xiaoqing;YUAN Qingze;LIANG Huafang;HU Wei(College of Mechanical Engineering,Donghua University,Shanghai 201620,China;Engineering Research Center of Technical Textiles,State Ministry of Education,Donghua University,Shanghai 201620,China;Zhejiang Vie Science and Technology Co.,Ltd.,Shaoxing 311800,Zhejiang,China;State Key Laboratory of Mechanical System and Vibration,Shanghai Jiaotong University,Shanghai 200240,China)

机构地区：[1]东华大学机械工程学院,上海201620 [2]东华大学产业用纺织品教育部工程研究中心,上海201620 [3]浙江万安科技股份有限公司,浙江绍兴311800 [4]上海交通大学机械系统与振动全国重点实验室,上海200240

出　　处：《噪声与振动控制》2024年第5期82-87,132,共7页Noise and Vibration Control

基　　金：中国博士后科学基金资助项目(2022M712835);机械系统与振动国家重点实验室课题资助项目(MSV202317);中央高校基本科研业务费专项资金资助项目(23D128705)。

摘　　要：随着新能源汽车的快速发展,汽车燃油发动机带来的噪声不复存在,而空压机工作产生的噪声得以凸显。针对某型号电动空压机的噪声问题,综合采用ANSYS、STAR-CCM+等数值模拟软件和半消声实验室进行研究。首先,通过对该二级空压机进行气路模型构建和噪声特性分析,并结合空压机振动噪声的相干性分析,统计气动噪声的显著频带。然后,结合模态声学的结果,利用正交实验方法重点研究气路管道参数对于气动噪声的影响,提出气路管道的优化设计方案。进一步的仿真模拟表明,该电动空压机气路宽频噪声相比优化前降低8.1dB左右,实现了预期目标,研究结果可为该空压机的进一步应用提供参考。With the rapid development of new energy vehicles,the noise caused by fuel engines in vehicles no longer exists,while the noise generated by the operation of air compressors is highlighted.This article focuses on the noise problem of a certain type of electric air compressors,and comprehensively uses numerical simulation software such as ANSYS and STAR-CCM+,as well as a semi anechoic laboratory for research.First of all,the significant frequency band of aerodynamic noise is counted by building the air path model and analyzing the noise characteristics of the double-stage air compressor,and combining with the coherence analysis of the vibration noise of the air compressor.Then,based on the results of modal acoustics,the orthogonal experimental method is used to analyze the influence of gas pipeline parameters on aerodynamic noise,and an optimized design scheme for gas pipeline is proposed.Further simulation shows that the broadband noise of the air circuit of the electric air compressor is reduced by about 8.1 dB compared to that before optimization,which achieves the expected goal.This work provides a reference for the further application of the air compressors.

关 键 词：声学 电动空压机 数值模拟 相干性分析 正交实验 气动噪声 

分 类 号：TH45[机械工程—机械制造及自动化] TB535.1[理学—物理]