HUANG Gang-jin, FAN Yu-gang, FENG Zao, et al. Research on TKEO fault diagnosis method based on SVD-morphological noise reduction[J]. 2017, 36(7): 29-32+37.
HUANG Gang-jin, FAN Yu-gang, FENG Zao, et al. Research on TKEO fault diagnosis method based on SVD-morphological noise reduction[J]. 2017, 36(7): 29-32+37. DOI: 10.13873/j.1000-9787(2017)07-0029-04.
Aiming at problem of extracting weak characteristics from the fault signals containing strong background noise
a method based on singular value decomposition( SVD)-morphological noise reduction for Teager-Kaiser energy operator( TKEO) fault diagnosis is proposed. Firstly
bearing vibration signal is decomposed by SVD
the component signals are filtered by morphological filter to remove the noise; Secondly
the component signals are screened and reconstructed using kurtosis criterion; Finally
the instantaneous energy of reconstructed signals are calculated by using the TKEO
the energy spectrum of the signals are then obtained
from which the characteristics of the vibration signals are extracted. The experimental results show that the proposed method is capable of extracting fault features and has offered an approving performance on fault diagnosis of rolling bearing.
Study on Hankel matrix-based SVD and its application in rolling element bearing fault diagnosis [J] . Huiming Jiang,Jin Chen,Guangming Dong,Tao Liu,Gang Chen. Mechanical Systems and Signal Processing . 2015