摘要
详细分析了小波包滤波原理。在大量实验分析和理论分析的基础上 ,提出了使用基于特征频率的小波包滤波方法。从而解决了由噪声引起的检测故障滚动轴承误判的问题 。
The paper presents the theory of wavelet packet decomposition in details. On basis of this theory, the authors introduce a method of filter on characteristic frequency band. This method can filtrate the noise which always leads rolling bearing monitor into error. Meanwhile ,it is very important to pick out characteristic signal to analysis bearing fault.
出处
《机械》
2002年第4期11-12,45,共3页
Machinery
关键词
故障诊断
声发射
滚动轴承
小波包分解
小波包滤波
fault diagnosis
AE(Acoustical Emission)
rolling bearing
wavelet packet decomposition
