四缸增压柴油机噪声试验研究

黄文星; 龚灵辉; 沈黎明; 罗福强

doi:10.13433/j.cnki.1003-8728.2014.1211

四缸增压柴油机噪声试验研究

doi: 10.13433/j.cnki.1003-8728.2014.1211

1.
江苏大学汽车与交通工程学院, 镇江 212013;
2.
江苏四达动力集团, 无锡 214000

基金项目:

国家自然科学基金项目(51176068)

江苏省博士创新基金项目(CXZZ12-0674)资助

详细信息

作者简介:
黄文星(1989- ),硕士,研究方向为发动机噪声与振动控制研究,mervin8l@163.com。

通讯作者:
罗福强,教授,博士生导师,luofq@ujs.edu.cn。

计量
- 文章访问数: 107
- HTML全文浏览量: 18
- PDF下载量: 4
- 被引次数: 0
出版历程
- 收稿日期: 2013-04-12
- 刊出日期: 2014-12-05

An Experimental Study on the Noise of a 4-cylinder Turbocharged Diesel Engine

1.
School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013;
2.
Jiangsu SIDA Power Mechanical Group, Wuxi 214000

摘要

摘要: 通过研究一台四缸直喷增压柴油机整机噪声和近声场噪声频谱,分析发动机的噪声特性及噪声主要来源.在不改变柴油机主要零部件结构的前提下,采取改变供油提前角、发动机功率、增压器类型、油嘴开启压力、油泵参数等措施,对比分析各措施对发动机噪声的影响效果,确定综合降噪措施.试验结果表明:各措施都取得了一定降噪效果,在最佳方案下柴油机整机噪声声功率级降低了1.32 dB(A).
- 柴油机 /
- 噪声 /
- 频谱分析
Abstract: Based on the measurement of noise and near sound field spectrum analysis of a 4-cylinder direct injection turbocharged diesel engine,the noise characteristic and noise source of the engine are analyzed. Some measures to reduce noise by changing engine parameters such as fuel supply advance angle,engine power,supercharger type,opening pressure of injector and parameters of fuel pump are adopted while the main structure parameters of the engine are kept the same. The effects of these measures on engine noise are compared and analyzed to select the optimal scheme of comprehensive measure for noise reduction. The results show that the noise of the engine can be reduced by 1.32 d B(A) with the optimal measure.
- design of experiments /
- diesel engines /
- engine cylinders

HTML全文

参考文献(8)

[1]	吴炎庭,袁卫平内燃机噪声振动与控制[M]北京机械工业出版社,2005 Wu Y T,Yuan W P.Noise and vibration control of internal combustion engine]M].Beijing:China Machine Press,2005
[2]	刘涛,赵晓丹,孟浩东隔声处理技术在柴油机降噪中的应用[J]拖拉机与农用运输车,2009,36(4);91-92 Liu T,Zhao X D,Meng H D.Diesel noise reductaion based on sound-insulating treatment[J]Tracaor and Farm Transporter,2009,36(4);91-92
[3]	Li WL,Gu F,Ball A D,et al.A study of the noise from diesel engines using the independent component analysis [J].Mechanical Systems and Signal Processing, 2001,15(6):1165-1184
[4]	Giakoumis E G,Dimaratos A M,Rakopoulos C D Experimental study of combustion noise radiation during transient turbocharged diesel engine operation[J] Energy,2011,36;4955-4983
[5]	谢裕智柴油机噪声源识别的分析与研究[D]镇江: 江苏大学,2007 Xie Y Z.Analysis and research of diesel engine noise source identification[D]Zhenjiang; Jiangsu University, 2007
[6]	Makolm J.Crocker.Identification of noise sources on a residential split-system air-conditioner using sound intensity measurements[J].Applled Acoustict、,2004,65: 545-558
[7]	刘更,赵冠军,吴立言基于声学贡献度分析的振动噪声控制方法研究[J]机械科学与技术,2009,28(12): 1541-1545 Liu G,Zhao G J,Wu L Y.A vibration and noise control method based on acoustic contribution analysis[J] Mechanical Seience and Technology for Aerospace Engineering,2009,28(12):1541-1545
[8]	Pruvost L,Lec1c5re Q,Parizet E.Diesel engine combustion and mechanical noise separation using an improved spectarofilter[J]Mechanical Systems and Signal Processing,2009,23;2072-2087