Recent advances in journal bearings: wear fault diagnostics, condition monitoring and fault diagnosis methodologies

This review comprehensively encompasses a range of recent studies on journal bearings, emphasizing wear fault diagnostics, condition monitoring, and fault diagnosis methodologies. A significant finding reveals a shift back to the utilization of journal bearings in various rotating machinery such as...

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Main Authors: Nazik Jebur, Wafa Soud
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2025-01-01
Series:Engineering and Technology Journal
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Online Access:https://etj.uotechnology.edu.iq/article_184650_e164d19b99b7d3d46399faa993dcc4ab.pdf
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author Nazik Jebur
Wafa Soud
author_facet Nazik Jebur
Wafa Soud
author_sort Nazik Jebur
collection DOAJ
description This review comprehensively encompasses a range of recent studies on journal bearings, emphasizing wear fault diagnostics, condition monitoring, and fault diagnosis methodologies. A significant finding reveals a shift back to the utilization of journal bearings in various rotating machinery such as compressors, motors, turbines, and pumps. Various methodologies employed in these recent studies include vibration analysis, machine learning, deep learning, and both numerical and experimental simulations. Key findings indicate that ensemble models, such as the CNN and deep neural network (CNNEPDNN) model, significantly improve convergence speed, test accuracy, and F-Score in bearing fault diagnosis by 15-20% compared to individual models. Additionally, convolutional autoencoders have demonstrated impressive performance, achieving an average Pearson coefficient of 91% in wear estimation, underscoring the critical importance of predictive maintenance. Despite these remarkable advancements, challenges persist due to the lack of uniform evaluation criteria and the focus on specific error types under particular operating conditions. Collaborative efforts among researchers are essential for developing robust and broadly applicable diagnostic models. Addressing these ongoing issues will further enhance condition monitoring and defect detection, leading to more reliable and academically rigorous diagnostic methods applicable in diverse real-world scenarios.
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institution Kabale University
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spelling doaj-art-ff90fd993b0f4a8d8c7e206d592981702025-02-02T07:51:22ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582025-01-01431254110.30684/etj.2024.148997.1737184650Recent advances in journal bearings: wear fault diagnostics, condition monitoring and fault diagnosis methodologiesNazik Jebur0Wafa Soud1Mechanical Engineering Dept., University of Technology-Iraq, Alsina’a street, 10066 Baghdad, Iraq.Mechanical Engineering Dept., University of Technology-Iraq, Alsina’a street, 10066 Baghdad, Iraq.This review comprehensively encompasses a range of recent studies on journal bearings, emphasizing wear fault diagnostics, condition monitoring, and fault diagnosis methodologies. A significant finding reveals a shift back to the utilization of journal bearings in various rotating machinery such as compressors, motors, turbines, and pumps. Various methodologies employed in these recent studies include vibration analysis, machine learning, deep learning, and both numerical and experimental simulations. Key findings indicate that ensemble models, such as the CNN and deep neural network (CNNEPDNN) model, significantly improve convergence speed, test accuracy, and F-Score in bearing fault diagnosis by 15-20% compared to individual models. Additionally, convolutional autoencoders have demonstrated impressive performance, achieving an average Pearson coefficient of 91% in wear estimation, underscoring the critical importance of predictive maintenance. Despite these remarkable advancements, challenges persist due to the lack of uniform evaluation criteria and the focus on specific error types under particular operating conditions. Collaborative efforts among researchers are essential for developing robust and broadly applicable diagnostic models. Addressing these ongoing issues will further enhance condition monitoring and defect detection, leading to more reliable and academically rigorous diagnostic methods applicable in diverse real-world scenarios.https://etj.uotechnology.edu.iq/article_184650_e164d19b99b7d3d46399faa993dcc4ab.pdfjournal bearingsfault diagnosticsvibration analysisdeep learningbearing wear
spellingShingle Nazik Jebur
Wafa Soud
Recent advances in journal bearings: wear fault diagnostics, condition monitoring and fault diagnosis methodologies
Engineering and Technology Journal
journal bearings
fault diagnostics
vibration analysis
deep learning
bearing wear
title Recent advances in journal bearings: wear fault diagnostics, condition monitoring and fault diagnosis methodologies
title_full Recent advances in journal bearings: wear fault diagnostics, condition monitoring and fault diagnosis methodologies
title_fullStr Recent advances in journal bearings: wear fault diagnostics, condition monitoring and fault diagnosis methodologies
title_full_unstemmed Recent advances in journal bearings: wear fault diagnostics, condition monitoring and fault diagnosis methodologies
title_short Recent advances in journal bearings: wear fault diagnostics, condition monitoring and fault diagnosis methodologies
title_sort recent advances in journal bearings wear fault diagnostics condition monitoring and fault diagnosis methodologies
topic journal bearings
fault diagnostics
vibration analysis
deep learning
bearing wear
url https://etj.uotechnology.edu.iq/article_184650_e164d19b99b7d3d46399faa993dcc4ab.pdf
work_keys_str_mv AT nazikjebur recentadvancesinjournalbearingswearfaultdiagnosticsconditionmonitoringandfaultdiagnosismethodologies
AT wafasoud recentadvancesinjournalbearingswearfaultdiagnosticsconditionmonitoringandfaultdiagnosismethodologies