| 基于声强试验法的柴油机噪声源识别与评价 |
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| 引用本文： | 陈林,王忠,刘帅,夏恒,徐凌.基于声强试验法的柴油机噪声源识别与评价[J].车用发动机,2011(3):60-64. |
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| 作者姓名： | 陈林 王忠 刘帅 夏恒 徐凌 |
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| 作者单位： | 江苏大学汽车与交通工程学院;一汽解放公司无锡柴油机厂; |
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| 摘 要： | 运用GRAS声强测试仪器,对高压共轨柴油机的燃油泵、风扇、排气侧、摇臂侧盖面建立225个测量网格,对怠速、最大扭矩、标定及其他工况的噪声进行测量.将所得数据用STARAcoustics声强软件进行处理和分析,得出柴油机各个测量表面的声强矢量、等声强和声功率分布.提出噪声源分比率概念,并对柴油机的主要噪声源进行了识别.研...
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| 关 键 词： | 柴油机 噪声测量 噪声源 识别 |
Identification and Evaluation of Diesel Engine Noise Source Based on Acoustic Intensity |
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| CHEN Lin,WANG Zhong,LIU Shuai,XIA Heng,XU Ling.Identification and Evaluation of Diesel Engine Noise Source Based on Acoustic Intensity[J].Vehicle Engine,2011(3):60-64. |
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| Authors: | CHEN Lin WANG Zhong LIU Shuai XIA Heng XU Ling |
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| Institution: | CHEN Lin1,WANG Zhong1,LIU Shuai1,XIA Heng2,XU Ling1(1.School of Automobile and Traffic Engineering,Jiangsu University,Zhenjiang 212013,China,2.Wuxi Diesel Engine Works,FAW Jiefang Automotive Company,Ltd.,Wuxi 214026,China) |
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| Abstract: | With GRAS sound intensity test device,the noise of high-pressure common rail diesel engine was measured.The 225 measurement grids were established on fuel pump,fan,exhaust side and rocker arm side.The noise of idle,maximum torque,rated speed and other conditions was measured.After processing and analyzing the measured data with STARA coustics sound intensity software,the intensity vector,equal acoustic intensity and acoustic power distribution of each measured surface were acquired.The concept of noise sour... |
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| Keywords: | diesel engine noise measurement noise source recognition |
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