直通穿孔管阻性消声器声学特性分析的新传递矩阵法  

New transfer matrix analysis of acoustic characteristic of straight through perforated tube dissipative mufflers

作　　者：刘灿礼[1] 袁丽芸[1] 王俊鹏[1] 孙润[1] 曹振强 Liu Canli;Yuan Liyun;Wang Junpeng;Sun Run;Cao Zhenqiang(Department of Automotive and Transportation,Guangxi University of Science and Technology,Liuzhou 545006,Guangxi,China)

机构地区：[1]广西科技大学汽车与交通学院,柳州545006

出　　处：《现代制造工程》2018年第9期99-103,共5页Modern Manufacturing Engineering

基　　金：国家自然科学基金项目(11502056;51665006);广西自然科学基金项目(2015GXNSFBA139007);广西重点实验室开放基金项目(1404544);广西科技大学博士基金项目(12Z09)

摘　　要：基于现有文献建立的直通穿孔管阻性消声器声学特性的一维解析模型,将传统传递矩阵法和精细积分法相结合,提出了一种新的传递矩阵法,并应用于分析直通穿孔管阻性消声器声学特性。通过与相关文献和有限元分析结果进行对比,表明新传递矩阵法能够有效计算穿孔管消声器的声学特性,并可提高计算效率。将新传递矩阵法应用于分析此类消声器结构参数对声传递损失的影响,可为该类消声器的研究提供更为便捷的研究手段。Based on the existing literature established one dimensional analytical model of acoustic characteristics of perforated tube dissipative mufflers, combining the traditional transfer matrix method and the precise integration method, puts forward a new transfer matrix method, and applied to analyzing the acoustic characteristics of straight through perforated tube dissipative muf- flers. Comparison of analysis results between the related reference and the Finite Element Method（ FEM）, illustrates that the new transfer matrix method can effectively calculate the acoustic characteristics of perforated tube mufflers, and improves the computational efficiency. The new transfer matrix method was applied to analyze the structure parameters of this kind of the mufflers on the effect of transmission loss of sound,provides a more simple and convenient means for studying of the mufflers.

关 键 词：新传递矩阵法 精细积分法 穿孔管 消声器 声学特性 

分 类 号：TK411.6[动力工程及工程热物理—动力机械及工程]