摘要
针对旋转机械设备损伤类故障诊断问题 ,提出一种用 Morlet小波和连续小波变换实现的新包络检波算法。利用小波变换时 -频分析的优势 ,新算法能够在整个时 -频空间内对信号进行包络处理 。
Aiming at the fault diagnosis of rotating machinery, a new enveloping algorithm that uses Morlet wavelet and wavelet transform is proposed. By time frequency characteristics of the wavelet transform, the new algorithm can do the envelop processing in all time frequency plane. Both impulse fault components and their frequency band can be extracted from the signal.
出处
《振动工程学报》
EI
CSCD
北大核心
2002年第1期119-122,共4页
Journal of Vibration Engineering
基金
国家 8 6 3项目 (编号 :2 0 0 1AA4 2 32 30 )资助
