基于Sysnoise的汽车进气消声器声学性能分析及结构研究  

Analysis of acoustic performance and constructure for automotive intake muffler based on Sysnoise software

作　　者：李金库[1] 陈英君[1] 宋世忠[2] 张玉华 庞然[1] 

机构地区：[1]黑龙江工程学院汽车与交通工程学院,黑龙江哈尔滨150050 [2]佳木斯市公路管理处,黑龙江佳木斯154002 [3]佳木斯市郊区政府,黑龙江佳木斯154002

出　　处：《黑龙江工程学院学报》2014年第1期5-9,共5页Journal of Heilongjiang Institute of Technology

基　　金：黑龙江省普通高等学校青年学术骨干支持计划项目(1153G030)

摘　　要：以声学软件Sysnoise为平台,综合运用有声学限元法及小波包分析理论,对基本消声单元的声学性能进行数值仿真分析;定性地描述Helmholts谐振腔的体积、主管尺寸等不同结构参数对消声器性能,即谐振频率和消声量的影响。根据仿真分析、噪声试验和发动机的实际空间来设计消声器,并最终确定消声器的结构,为降低汽车进气噪声打下良好的基础。Based on the professional acoustic software Sysnoise for platform, the agcoustic limit element method and wavelet packet analysis theory are adopted to analyze and simulate the acoustic performance of the basic anechoic unit. It qualitatively describes the influence on muffler performance,namely, resonance frequency due to different structural parameters such as Helmholts resonator size and head size. According to the simulation analysis, noise experiment and the actual space of the engine a design is made on the muffler, ultimately determining the structure of the muffler, and laying a foundation to reduce the automobile air intake noise.

关 键 词：Sysnoise软件 声学性能 汽车进气消声器 结构设计 噪声识别 

分 类 号：X192[环境科学与工程—环境科学]