Hybrid PCA-SVM Method for Pattern Recognition of Chatter Gestation

To distinguish chatter gestation, chatter recognition method based on hybrid PCA (Principal Component Analysis) and SVM (Support Vector Machine) is proposed for dynamic patterns of chatter gestation in cutting process. At first, FFT features are extracted from the vibration signal of cutting process, then FFT vectors are presorted and introduced to PCA-SVM for machine learning and classification. Finally the results of chatter gestation recognition and chatter prediction experiments are presented and show that the method proposed is effective.