汽车排气消声器声学性能国内外研究现状及趋势  

The research status and trend at home and abroad of acoustic performance on automotive exhaust muffler

作　　者：李根[1] 涂江波 涂海华[3] 

机构地区：[1]重庆大学机械工程学院,重庆400030 [2]格特拉克(江西)传动系统有限公司产品开发中心,南昌330013 [3]江西农业大学理学院,南昌330045

出　　处：《现代制造工程》2012年第12期128-132,共5页Modern Manufacturing Engineering

基　　金：国家科技支撑计划课题项目(2012BAD14B14);江西省教育厅科技资助项目(GJJ12230;GJJ12240)

摘　　要：汽车排气消声器的设计具有较高的复杂性,现阶段消声器的设计尚无直接成熟的理论,设计者必须通过反复修改和试验才能达到设计要求。结合有关文献分析了消声器声学性能的国内外研究现状及存在的问题,论述了一维声传递矩阵、有限元及边界元等声学性能分析方法在消声器设计中的应用和发展,并基于消声器的实际工况特点,指出气流和温度对消声器的声学性能有不可忽视的影响,并根据当前消声器研究存在的问题,对其研究趋势进行相应的预测。The design of automotive exhaust muffler can be high complicated, however, there is not any direct and mature theory on muffler design currently. Designers have to revise and take experiments repeatedly to satisfy the design requirements. Base on the relevant literature, the research status at home and abroad on acoustic performance and existing problems on muffler are ana lyzed, the acoustic performance analysis methods like one-dimension acoustic transfer matrix, finite element method and boundary element method using on muffler design are discussed. Based on the actual working characteristics of muffler, point out that the in- fluence of airflow and temperature on muffler acoustic performance cannot be neglected. According to the current problems exist- ing in the study of muffler,the corresponding predictions on muffler research trend are given.

关 键 词：消声器 气流 温度 预测 

分 类 号：TK411.6[动力工程及工程热物理—动力机械及工程]