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Title: Mechanical fault diagnosis by using dynamic transfer adversarial learning
Authors: Wei, Yadong
Long, Tuzhi
Cai, Xiaoman
Zhang, Shaohui
GJorgjevikj, Dejan 
Li, Chuan
Keywords: Fault diagnosis; dynamic transfer adversarial learning; one-dimensional signal; deep learning; transfer learning
Issue Date: 17-Jun-2021
Publisher: IOP Publishing
Source: Yadong Wei et al 2021 Meas. Sci. Technol. 32 104005
Project: Macedonian - Chinese Scientific and Technological Cooperation Program Project 20-6343t
Journal: Measurement Science and Technology
Abstract: Different machine learning approaches have been developed for the fault diagnosis of mechanical systems. To achieve desired diagnosis performance, lots of labeled one-dimensional signals are required for training machine learning models. However, those signals collected under various working conditions are difficult to be used for both diagnosis model training and testing. For real applications, moreover, the collection of labeled data is more difficult than that of unlabeled ones. To tackle the above challenging points, a dynamic transfer adversarial learning (DTAL) network is proposed for dealing with unsupervised fault diagnosis missions. To this end, an improved feature extractor is developed to deal with one-dimensional mechanical vibration signals. A dynamic adversarial factor is presented to automatically adapt the marginal distribution of the global domain. The conditional distribution of the local domain is employed to make the model independent of training multiple classifiers, so as to reduce the computational burden of the proposed method. The addressed DTAL was evaluated using fault diagnosis experiments for a wind turbine gearbox and benchmark bearings. Compared with other state-of-the-art methods, it has better accuracy and robustness as highlighted by experimental results. The developed model can improve the diagnosis performance under various workloads for mechanical systems.
Description: This research is partially supported by the National Natural Science Foundation of China (51975121, 51775112), the Guangdong Basic and Applied Basic Research Foundation (2019B1515120095), the MoST International Cooperation Program (6-14) and the Faculty of Computer Science and Engineering, Ss. Cyril and Methodius University in Skopje.
DOI: 10.1088/1361-6501/ac0184
Appears in Collections:Faculty of Computer Science and Engineering: Journal Articles

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