Fault feature extraction of variable speed bearings based on order analysis
DOI:
https://doi.org/10.54097/jceim.v11i3.09Keywords:
Variable speed, Bearing, Order analysisAbstract
In the case of variable speed, the vibration signal of the measured bearing will contain the bearing itself information and the speed change information at the same time, and the signal is very non-periodic and non-stationary. In this paper, the order analysis method is adopted, the bearing vibration signal and the speed pulse signal are analyzed, and the signal is reconstructed by angle resampling, which reduces the non-stationarity of the signal, enhances the usability of the subsequent time-frequency analysis method, and can better extract the bearing fault characteristics in the variable speed environment.
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