Fault Diagnosis Method of Rolling Bearing Combining PSO-VMD with Teager Envelope Spectrum
In order to solve the problem that manually determining input parameters can affect the accuracy of modal decomposition when processing non-stationary signals by using the VMD method,a PSO-VMD method based on PSO algorithm to optimize VMD input parameters is applied to modal decomposition of rolling bearing fault signals.The Teager Energy Operator(TEO)is used to further calculate the results of modal decomposition and obtain the Teager envelope spectra of each modal component.The effectiveness and practicality of the PSO-VMD method are verified through the modal decomposition and fault diagnosis of vibration fault signals measured at single point faults of the inner ring,outer ring,and roller of rolling bearings.
NETL
NSTL
万方数据
维普
