College of Civil Aviation;
Nanjing University of Aeronautics and Astronautics;
Nanjing;
210016;
China;
School of Information Engineering;
Nanjing Audit University;
Nanjing;
211815;
China;
National Engineering Research Center of Turbo-generator Vibration;
Southeast University;
Nanjing;
210009;
China;
Acoustic emission signal; deep learning; convolutional neural network; spectral features; rub-impact;