| 发动机排气噪声有源消声技术研究 |
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| 引用本文： | 李伟. 发动机排气噪声有源消声技术研究[J]. 农机化研究, 2011, 0(10) |
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| 作者姓名： | 李伟 |
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| 作者单位： | 河南机电高等专科学校机电工程系; |
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| 摘 要： | 排气噪声是发动机主要的噪声源之一。有源消声技术是运用数字信号处理技术实现声波相消干涉达到电控消声目的,它已成为近年来发动机排气噪声治理领域备受关注的一个热点。为此,主要研究了有源消声技术在发动机排气降噪方面的应用,并对其进行了模拟实验。结果表明,有源消声技术具有明显的降噪效果。
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| 关 键 词： | 有源消声 发动机排气降噪 LMS算法 数字信号处理 |
Study on Active Control Noise Technique for Engine Exhaust Noise |
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| Li Wei. Study on Active Control Noise Technique for Engine Exhaust Noise[J]. Journal of Agricultural Mechanization Research, 2011, 0(10) |
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| Authors: | Li Wei |
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| Affiliation: | Li Wei(Department of Mechanical and Electronic Engineering of Henan Mechanical and Electrical Engineering College,Xinxiang 453003,China) |
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| Abstract: | Engine exhaust noise is an important source of the engine noise.The active control noise(ANC)technique can offset the limitations of muffers,which eliminate the noise by interference of sound wave under the help of Digital Signal Processing technique.ANC technique has become a hotspot in noise reigning region of engine exhaust in recent years.The applications of active control noise technique in reducing the engine exhaust noise will be mainly researched in this paper.Finally experiments on interference noi... |
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| Keywords: | ANC engine exhaust noise LMS algorithm DSP |
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