MIIT Key Laboratory of Dynamics and Control of Complex Systems;
Northwestern Polytechnical University;
Xi’an 710072;
China;
School of Mechanical Engineering;
Northwestern Polytechnical University;
Xi’an 710072;
China;
Institute of Unmanned System;
National University of Defense Technology;
Changsha 410073;
China;
Convolutional; neural; network; Feature; extraction; Infrared; thermography(IRT); Intelligent; fault; diagnosis; Rotating; machinery;