Intelligent fault diagnosis method of rolling bearing based on mixed domain residual attention network
Mechanical equipment is developing in the direction of large-scale,precision and automation,and mechanical systems are becoming increasingly complex.The automatic detection of mechanical faults is a great challenge con-sidering that those mechanical systems may suffer from featueless catastrophic failures.However,existing fault de-tection methods have a high misdiagnosis rate when identifying fault types in highly complex industrial systems,and cannot produce accurate fault diagnosis results.To solve this problem,a new fault diagnosis method based on mixed domain residual attention network is proposed in this paper,which takes rolling bearing as the research ob-ject as it is the key component of mechanical equipment.This paper aims to improve the performance of fault detec-tion by combining the advantages of automatic learning representation of deep convolutional neural network and key feature extraction ability of channel attention mechanism and spatial attention mechanism.Experimental results show that the proposed method can accurately detect bearing faults and is superior to existing state-of-the-art methods.