具有平均流的消声器声学特性的改进体积合成算法分析  

An Analysis on the Acoustic Characteristics of Muffler with Mean Flow Using Improved Volume Synthesis Algorithm

作　　者：刘嘉敏[1] 孙小园[1] 黄虹溥[1] 余淼[1] 

机构地区：[1]重庆大学,光电技术及系统教育部重点实验室,重庆400044

出　　处：《汽车工程》2013年第9期852-856,共5页Automotive Engineering

基　　金：重庆市科委攻关项目(CSTC2008AB6003)资助

摘　　要：在阐述了体积合成算法基本原理的基础上,对其进行改进,使其适用于存在平均流的消声器声学特性的预测。使用改进后的算法对一些不同结构类型消声器的传递损失进行预测,并通过与有关文献和实验数据的对比进行验证。最后以一个实例讨论了平均流对消声器声学性能的影响。On the base of a description on its basic principle, the volume synthesis algorithm （VSA） is im- proved to adapt to the prediction of the acoustic characteristics of muffler with mean flow. The improved VSA is then used to predict the acoustic characteristics of a few mufflers with different types of structure, and the results are veri- fied by comparing them with data in related literatures and test data. Finally the effects of mean flow on the acoustic performance of muffler are discussed with a real example.

关 键 词：消声器 声学性能 体积合成法 平均流 

分 类 号：TB535.2[理学—物理]