| 信号的小波尺度-频率表示及其在机械故障诊断中的应用 |
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| 引用本文： | 孔凡让,朱忠奎,羊拯民,赵吉文,李晓峰,王建平.信号的小波尺度-频率表示及其在机械故障诊断中的应用[J].振动与冲击,2003,22(4):19-22. |
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| 作者姓名： | 孔凡让 朱忠奎 羊拯民 赵吉文 李晓峰 王建平 |
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| 作者单位： | 1. 中国科学技术大学,精密机械与精密仪器系,合肥,230026
2. 合肥工业大学,机械与汽车工程学院,合肥,230009 |
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| 摘 要： | 基于对信号的连续小波变换特点的分析，提出信号特征的小波尺度一频率表示方法。该方法对污染的脉冲信号和正弦信号的应用结果表明该方法能有效提取强噪声背景下的周期成分。以变速器齿轮的故障诊断为例，用该方法对变速箱齿轮振动信号的尺度-频率表示进行分析，结果表明该方法能非常有效地将不同磨损状况的齿轮振动信号的特征表现出来。
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| 关 键 词： | 小波变换 脉冲信号 正弦信号 变速器 故障诊断 噪声污染 |
| 修稿时间： | 2002年9月10日 |
Wavelet Scale-frequency Representation of Signal and its Applications in Mechanical Fault Diagnosis |
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| Kong Fanrang,Zhu Zhongkui,Yang Zhengmin,Zhao Jiwen,Li Xiaofeng,Wang Jianping.Wavelet Scale-frequency Representation of Signal and its Applications in Mechanical Fault Diagnosis[J].Journal of Vibration and Shock,2003,22(4):19-22. |
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| Authors: | Kong Fanrang Zhu Zhongkui Yang Zhengmin Zhao Jiwen Li Xiaofeng Wang Jianping |
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| Affiliation: | Kong Fanrang 1 Zhu Zhongkui 1 Yang Zhengmin 2 Zhao Jiwen 1 Li Xiaofeng 1 Wang Jianping 1 |
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| Abstract: | Based on the research on continuous wavelet transform,a feature extracting method called wavelet scale-frequency representation is proposed.The applications to corrupted impulse signal and sine signal show that the method is quite effective in extracting the periodic components in corrupted signals.In practice,this method has been applied in representing gear vibration signals,The representation shows that the wear degree of the gear is clearly demonstrated. |
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| Keywords: | gear continuous wavelet transform scale fault diagnosis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
