Under the dynamic load loose abrasive wear for the study, the use of sample rotation in the abrasives, abrasive body vertical vibration excitation by wear in the form, starting from the vibration frequency, vibration of loose abrasive in the wear con

A novel fault feature extraction method based on the local mean decomposition technology and multi-scale entropy is proposed in this paper. When fault occurs in roller bearings, the vibration signals picked up would exactly display non-stationary