| 小波分析及其在机械诊断中的应用 |
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| 引用本文： | 陈涛,屈梁生,耿中行.小波分析及其在机械诊断中的应用[J].机械工程学报,1997(3). |
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| 作者姓名： | 陈涛 屈梁生 耿中行 |
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| 作者单位： | 西安交通大学机械诊断与控制学研究所 |
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| 摘 要： | 从工程应用的角度提出了对于小波分析的理解，给出了小波函数和尺度函数之间的关系和信号分解的小波变换。利用小波包算法分析了两种典型的机械故障。结果显示，小波包的分析方法较传统的窗口傅里叶变换和维格纳分布更加有效。
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| 关 键 词： | 机械，小波分析，小波包，故障诊断 |
WAVELET ANALYSIS AND ITS APPLICATION IN MACHINERY DIAGNOSIS |
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| Chen Tao,Qu Liangsheng,Geng Zhongsing.WAVELET ANALYSIS AND ITS APPLICATION IN MACHINERY DIAGNOSIS[J].Chinese Journal of Mechanical Engineering,1997(3). |
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| Authors: | Chen Tao Qu Liangsheng Geng Zhongsing |
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| Abstract: | To understand the wavelet analysis is put forward from engineering application . The relationship between wavelet function and scale function, the wavelet transfornn and the signal decomposition are given . Furthernnore, we take advantage of the algorit hm of wavelet packet to analyze two ki nds of typical mechanical faults . Results show the wavelet packet is a more efficient method in comparison with windowed fourier transform ( WFT ) and wigner distri - bution (WD) in the field of machinery diagnodis . |
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| Keywords: | : Machinery Wavelet analysis Wavelet packet Fault diagnosis |
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