| 基于小波阈值滤波的轴承故障诊断 |
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| 引用本文： | 谢晖,傅攀,朱丽琴,李扬.基于小波阈值滤波的轴承故障诊断[J].轴承,2009(3). |
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| 作者姓名： | 谢晖 傅攀 朱丽琴 李扬 |
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| 作者单位： | 西南交通大学,机械工程学院,四川,成都,610031 |
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| 摘 要： | 针对软阈值滤波和硬阈值滤波的缺陷,设计出了-个线性和非线性相结合的新的阈值函数.在试验仿真后,将其用于实际的振动信号处理.实践证明,此方法不仅滤除了大量的噪声,而且很好地保留了信号的细节,为提取到清晰的故障特征以及分析故障特征创造了条件.
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| 关 键 词： | 滚动轴承 故障诊断 小波阈值滤波 阈值函数 |
Intelligent Diagnosis of Rolling Bearings Based on Threshold Filtering of Wavelet |
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| XIE Hui,FU Pan,ZHU Li-qin,LI Yang.Intelligent Diagnosis of Rolling Bearings Based on Threshold Filtering of Wavelet[J].Bearing,2009(3). |
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| Authors: | XIE Hui FU Pan ZHU Li-qin LI Yang |
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| Affiliation: | School of Mechanical and Engineering;Southwest Jiaotong University;Chengdu 610031;China |
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| Abstract: | During adopting threshold filtering of wavelet to process the vibration signal at the early stage,aiming to the defects of soft-threshold and hard-threshold,a new threshold function is designed,which combines both linear and nonlinear part,and can be put into practice of vibration signal processing after simulation.Factors show that this method can not only remove a lot of noise,but also keep the details of the signal,thus providing a condition for extracting clear fault features and analyzing these fault f... |
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| Keywords: | rolling bearing fault diagnosis threshold filtering of wavelet threshold function |
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