| 滤波耦合法在航空发动机振动去噪中的应用 |
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| 引用本文： | 刘旭辉,岳太文,王英.滤波耦合法在航空发动机振动去噪中的应用[J].成都航空职业技术学院学报,2009,25(4):62-64. |
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| 作者姓名： | 刘旭辉 岳太文 王英 |
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| 作者单位： | 1. 成都航空职业技术学院,四川,成都,610021
2. 沈阳华晨金杯汽车有限公司,辽宁,沈阳,110034 |
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| 摘 要： | 在航空发动机故障诊断研究中,如何从被干扰的信号中有效去除噪声并提取更为准确的故障信息是十分重要的.本文结合实际问题,在小渡分析和中值滤波两种方法的基础上提出了Db小波与自适应中值滤波耦合法,并用该方法分析了某型航空发动机振动信号,其有效地去除了一系列噪声.
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| 关 键 词： | 航空发动机 小波降噪 自适应中值滤波 振动信号 |
Application of Filter Coupling Method in Denoising Procession of Vibration Signal of Aeroengine |
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| LIU Xuhui,YUE Taiwen,WANG Ying.Application of Filter Coupling Method in Denoising Procession of Vibration Signal of Aeroengine[J].Journal of Chengdu Aeronautic Vocational & Technical College,2009,25(4):62-64. |
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| Authors: | LIU Xuhui YUE Taiwen WANG Ying |
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| Abstract: | It is very important to denoise effectively from the disturbed signal and extract more accurately fault information in the field of aeroengine fault diagnosis.Combing with practical problems,this paper proposed the method of Db wavelet transformation and adaptive median coupling filter based on the wavelet analysis and median filter,and used this method to analyze the vibration signal of a certain type of aeroengine and filter the noise effectively. |
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| Keywords: | aeroengine wavelet denoising adaptive median filter vibration signal |
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