Author(s): Yang Min; Liu Yang
Linked Author(s):
Keywords: Wavelet analysis; Wavelet packet analysis; Analysis of vibration source
Abstract: Based on the spot experiment of Lijiaxia hydropower station of two-row placed units, wavelet and wavelet packet analysis method are applied to decompose the non-stationary signal into different channels in this paper. Then we extract the weak information and useful components of the signal, finally process the analysis of vibration source and gain the main vibration source which caused the structure vibration in the course of units’ start up-shut off.
Year: 2005