| 两种声源识别技术在发动机噪声测试中的应用 |
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| 引用本文： | 高,辉,李洪亮,顾灿松等.两种声源识别技术在发动机噪声测试中的应用[J].小型内燃机与摩托车,2014(1):73-78. |
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| 作者姓名： | 高 辉 李洪亮 顾灿松等 |
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| 作者单位： | 中国汽车技术研究中心,天津300300 |
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| 摘 要： | 分别通过声强法和声阵列法对同一发动机进行怠速工况噪声源识别测试,确定发动机进气侧、排气侧和皮带轮侧的主要噪声源,对两种方法测试得到的噪声源及其频谱特性进行对比,发现测试结果基本一致,证明利用声阵列技术进行发动机噪声源识别测试比声强法更加简单易行。
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| 关 键 词： | 声强 声阵列 发动机 噪声源识别 |
Application of Two Methods of Noise Source Identification on Engine Noise Testing |
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| Gao Hui,Li Hongliang,Gu Cansong,Chen Daliang.Application of Two Methods of Noise Source Identification on Engine Noise Testing[J].Small Internal Combustion Engine and Motorcycle,2014(1):73-78. |
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| Authors: | Gao Hui Li Hongliang Gu Cansong Chen Daliang |
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| Affiliation: | (China Automotive Technology ＆ Research Center Tianjin, 300300, China) |
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| Abstract: | Based on sound intensity and acoustic array methods, noise source identification of an engine is measured in idle condition. The main noise source of intake surface, exhaust surface and belt surface are de- termined, also their spectrum analysis. The two kinds of method testing results fundamentally agree well, and it＇s verified that acoustic array method is simpler and easier than sound intensity method. |
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| Keywords: | Sound intensity Acoustic array Engine Noise source identification |
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