LIU Ying-jie, FAN Yu-gang, HUANG Guo-yong, et al. Bearing fault diagnosis method based on SVD-AR model and VPMCD[J]. 2017, 36(12): 46-49. DOI: 10.13873/J.1000-9787(2017)12-0046-04.
Aiming at problem of the failure feature extraction of vibration signal under strong noise background
proposed based on the singular value decomposition and auto regressive( SVD-AR) model
used for feature extraction of the vibration signal and applied for bearing fault diagnosis by combining with the variable predictive model based class discriminate( VPMCD). Firstly
the bearing vibration signal is decomposed by SVD
and then the component signals are screened by using the singular value difference spectrum
and AR model is established for the component signal which can reflect the fault information
extracting characteristic information of bearing vibration signal. Finally
it’s used to identify the running state of the rolling bearing by VPMCD. The test of rolling bearing fault diagnosis proves that the method is reasonable and effective.
Variable predictive model based classification algorithm for effective separation of protein structural classes [J] . Rao Raghuraj,S. Lakshminarayanan. Computational Biology and Chemistry . 2008 (4)