Local Mean Decomposition and Its Application to the Machine Fault Diagnosis
YI Xiaobing · Machine Tool & Hydraulics · 2011
The definition and algorithm of local mean decomposition(LMD),which was a new time-frequency method,were introduced.The effection of LMD was verified through simulation.The results show that all the instantaneous frequencies calculated by LMD have physical sense.They can reflect state of actual system.LMD was applied in bearing fault diagnosis.The experimental result reflects that this method is effective.