Global receptive field graph attention network for unsupervised domain adaptation fault diagnosis in variable operating conditions

Meiling Cai (), Sheng Chen (), Jinping Liu (), Yimei Yang () and Lihui Cen ()
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Meiling Cai: Hunan Normal University
Sheng Chen: Hunan Normal University
Jinping Liu: Hunan Normal University
Yimei Yang: Hunan Normal University
Lihui Cen: Central South University

Journal of Intelligent Manufacturing, 2025, vol. 36, issue 5, No 18, 3285-3312

Abstract: Abstract While deep learning has advanced significantly in machinery diagnosis, models trained on source domain data struggle with real-world applications due to varying operating conditions in the target domain. To address this, we propose a novel solution, the Global Receptive Field-based Graph Attention Network (GRF-GAT), for the fault diagnosis of varying conditions by the scheme of unsupervised domain adaptation. Unlike existing methods, GRF-GAT models class labels, domain labels, and associations and distributions among samples within a unified deep network. GRF-GAT outperforms other migration methods, achieving the highest diagnostic accuracy in case studies on three benchmark datasets: CWRU bearing dataset, SQ bearing dataset, Jiangnan University bearing dataset, and a real industrial dataset: Axial Fans fault dataset. The visualization results show that the model effectively extracts domain-divisible and domain-invariant features, exhibiting research prospects and application potential. The code library is available at https://github.com/MrTree777/GRF-GAT .

Keywords: Intelligent fault diagnosis; Varying operating conditions; Unsupervised domain adaptation; Graph attention network; Covariate shift; Transfer learning (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s10845-024-02401-7

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