汽车催化器转化器的消声性能研究
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- 英文论文题名：Study on Acoustic Performance of Automobile Catalytic Converter
- 论文作者：贺永刚 ; 黄昌瑞 ; 李振华 ; 何金平 ; 邢桂丽
- 英文论文作者：He Yonggang ; Huang Changrui ; Li Zhenhua ; He Jinping ; Xing Guili ; Brilliance Automotive Engineering Research Institute Engine Development Department
- 年：2016
- 作者机构：华晨汽车工程研究院动力总成设计处;
- 论文关键词：催化转化器 ; 声学测试试验 ; 消声性能
- 英文论文关键词：catalytic converter ; acoustic test ; acoustic performance
- 会议召开时间：2016-10-26
- 会议录名称：2016中国汽车工程学会年会论文集
- 英文会议录名称：Proceedings of 2016 SAE-China Congress
- 语种：中文
- 分类号：U464.134.4
- 学会代码：QCGC
- 会议名称：2016中国汽车工程学会年会暨展览会
- 会议地点：中国上海
- 主办单位：中国汽车工程学会
- 学会名称：中国汽车工程学会
- 页数：3
- 文件大小：343k
- 原文格式：O
- 会议级别：全国
摘要
催化转化器作为汽车的一个重要的环保部件,它同时还是一个非常重要的消声原件。发动机工作时会附带着产生机械噪声、燃烧噪声和气流冲击噪声等,这些噪声会随着排气流向后传播,其中一部分噪声是被排气管路和消声器元件消除掉的,还有一部分是被催化转化器消除掉的。本文通过声学测试试验的方法,测量催化转化器及其各个组件的声学数据,利用试验采集到的数据计算出各组件的传递损失,从而分析和研究催化器及各组件的消声性能。
Catalytic converter is not only an important environmental protection component of automobile,but also a very important muffler.The engine works with mechanical noise,combustion noise and air noise.The noise spread follow the exhaust flow,part of the noise is eliminated by exhaust pipe and muffler,the other is by the catalytic converter.In this paper,through the method of acoustic test,we got the acoustic measurement data of the various components of the catalytic converter,calculated the transmission loss of each component,and then analysed and researched on the catalytic converter and the attenuation performance of each component.
Catalytic converter is not only an important environmental protection component of automobile,but also a very important muffler.The engine works with mechanical noise,combustion noise and air noise.The noise spread follow the exhaust flow,part of the noise is eliminated by exhaust pipe and muffler,the other is by the catalytic converter.In this paper,through the method of acoustic test,we got the acoustic measurement data of the various components of the catalytic converter,calculated the transmission loss of each component,and then analysed and researched on the catalytic converter and the attenuation performance of each component.
引文
[1]庞剑,谌刚,何华.汽车噪声与振动:理论与应用[M].北京:北京理工大学出版社,2006.
[2]郝志勇,韩军.车用发动机主要噪声源的声强测试方法研究[J].内燃机工程,2004,25(2).
[2]郝志勇,韩军.车用发动机主要噪声源的声强测试方法研究[J].内燃机工程,2004,25(2).