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BearingFM: Towards a foundation model for bearing fault diagnosis by domain knowledge and contrastive learning
School of Computer Science and Technology, Beijing Institute of Technology, Beijing, China.
School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing, China.
School of Economics and Management, University of Chinese Academy of Science, Beijing, China.
KTH, School of Industrial Engineering and Management (ITM), Production engineering, Industrial Production Systems.ORCID iD: 0000-0001-8679-8049
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2024 (English)In: International Journal of Production Economics, ISSN 0925-5273, E-ISSN 1873-7579, Vol. 275, article id 109319Article in journal (Refereed) Published
Abstract [en]

Monitoring bearing failures in production equipment can effectively prevent finished product quality issues and unplanned factory downtime, thereby reducing supply chain uncertainties and risk. Therefore, monitoring bearing failures in production equipment is important for improving supply chain sustainability. Due to the generalization limitations of neural network models, specific models must be trained for specific tasks. However, in real industrial scenarios, there is a severe lack of labeled samples, making it difficult to deploy fault diagnosis models across massive amounts of equipment in workshops. In order to solve the above issue, this paper proposes a cloud-edge-end collaborative semi-supervised learning framework, which provides multi-level computing power and data support for building a foundation model. A data augmentation method based on the bearing fault mechanism is proposed, which effectively preserves the inherent essential characteristics in vibration signals by normalizing frequency and adding noise in specific frequency bands. A novel contrastive learning model is designed, which narrows the distances between positive samples and widens the distances between negative samples in the high-dimensional space through cross comparisons in the time dimension and knowledge dimension, thereby extracting the most essential characteristics from the unlabeled signals. Multiple sets of experiments conducted on four datasets demonstrate that the proposed approach achieves an approximately 98% fault classification accuracy with only 1.2% labeled samples.

Place, publisher, year, edition, pages
Elsevier BV , 2024. Vol. 275, article id 109319
Keywords [en]
Cloud-edge-end collaboration, Contrastive learning, Fault diagnosis, Foundation model, Semi-supervised learning
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
URN: urn:nbn:se:kth:diva-350682DOI: 10.1016/j.ijpe.2024.109319ISI: 001345654400001Scopus ID: 2-s2.0-85197794826OAI: oai:DiVA.org:kth-350682DiVA, id: diva2:1884648
Note

QC 20241115

Available from: 2024-07-17 Created: 2024-07-17 Last updated: 2024-11-15Bibliographically approved

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Wang, Lihui

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