Gear vibration analysis by B-spline wavelet-based linear wavelet transform
Gear vibration analysis by B-spline wavelet-based linear wavelet transform
复制标题
DOI：
10.1006/mssp.1997.0097
复制
发表时间：
1997-07-01
影响因子：
8.4
通讯作者：
McFadden, PD
中科院分区：
文献类型：
--
作者：
Lin, ST;McFadden, PD
齿轮故障产生的振动特征由主要齿啮合谐波周围的边带承载。本文应用基于B样条小波的线性小波变换来准确地揭示边带的频谱图。所提出的小波变换使用 1/a 进行单位归一化，而不是使用 1/root a 进行能量归一化，并且可以通过快速傅立叶变换轻松有效地计算。一个实验示例表明，只需检查一段时间内的频谱图即可监控齿轮中裂纹的发展情况。 (C) 1997 学术出版社有限公司。
The signature of the vibration generated by a fault on a gear is carried by the sidebands around the dominant tooth meshing harmonic. This paper applies the linear wavelet transform based on B-spline wavelets to reveal the spectrogram of the sidebands exactly. The proposed wavelet transform uses 1/a for unit normalisation instead of 1/root a for energy normalisation, and can be computed easily and efficiently by the fast Fourier transform. An experimental example demonstrates that the development of a crack in a gear call be monitored simply by examining the spectrograms over a period of time. (C) 1997 Academic Press Limited.