Study on Imbalance Vibration Signal Separation of Motor Spindle Based on EMD Method

It is the hypothesis of imbalance vibration monitoring and dynamic balance to separate the imbalance vibration signal accurately. The compositive method of accurate imbalance vibration signal separation was given based on some methods, such as signal forecasting and extension of time series model, EMD and correlation analysis etc. The principle and procedure of the method were introduced in detail based on radial vibration signal analysis of the motor spindle. In order to test the validity of the method, further unbalance experimentation and signal separation were carried out.