Incipient fault diagnosis of rolling-bearing based on maximum correlated kurtosis de-convolution
JING Shuangxi
LI Xinhua
ZHU Kunming
LENG Junfa
LUO Chenxu
Abstract：The faulty vibration signal of rolling element bearing at initial stage is generally very weak and affected by environment noise seriously.So it is difficult to extract the fault feature.In order to solve this problem,the method of maximum correlated kurtosis deconvolution (MCKD) is proposed.Firstly,the interested deconvolutive period T is estimated by calculating the maximum correlated kurtosis value of signals;Then,the appropriate M-shift is selected to do the MCKD for the fault signal;Finally,the fault feature of rolling-bearing is extracted through envelope demodulation analysis method,and is diagnosed as the incipient fault for this rolling-bearing.Its effectiveness is verified by the simulations and tests.
Keywords：rolling element bearingincipient faultmaximum correlated kurtosis de-convolutionenvelope demodulation
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 81-85 )