Recent Advances in Machinery Condition Monitoring and Fault Diagnosis: From Typical Algorithms to the Era of AI Blooming

A special issue of Machines (ISSN 2075-1702). This special issue belongs to the section "Machines Testing and Maintenance".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 1515

Special Issue Editors


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Guest Editor
Electrical Systems Engineering Department, Faculty of Technology, University of M'Hamed Bougara, Boumerdes 35000, Algeria
Interests: system health condition monitoring; fault detection and diagnosis; prognostics and health management; robotics (robots in manufacturing and robots in domicile); signal processing and filtration; control system and automation; mechatronics systems including applications to railway
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Engineering, University of Ferrara, Via Saragat 1, 44122 Ferrara, Italy
Interests: condition monitoring; diagnostics; prognostics; elastodynamic modeling of mechanical systems; experimental vibration measurements

Special Issue Information

Dear Colleagues,

High-performance, advanced condition monitoring, and fault diagnosis algorithm/solution development is a vital factor the for efficient and safe operation of any advanced innovative machinery. In particular, at present, the 4th Industrial Revolution has led to associated rapid changes in technology, industries, and societal patterns and processes (increased interconnectivity, i.e., Internet of Things (IoT) and smart automation). These advances enable deeper insights into asset failure processes and innovative methods to connect these insights with condition monitoring and maintenance management for industrial assets.

This Special Issue aims to bring researchers together to present recent advances and technologies, welcoming original research and review articles. Topics include, but are not limited to, the following:

  • Model-based condition monitoring and fault diagnosis;
  • Data-driven condition monitoring and fault diagnosis;
  • Handling class imbalance for early fault detection and diagnosis;
  • Typical algorithms vs. AI-based solutions for machinery condition monitoring and fault diagnosis;
  • Shallow and deep learning algorithms for condition monitoring and fault diagnosis;
  • Robptics and industrial applications.

Dr. Moussa Hamadache
Dr. Emiliano Mucchi
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Machines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • condition monitoring
  • fault diagnosis
  • class imbalance
  • maintenance
  • AI-based solutions
  • shallow and deep learning algorithms
  • early fault detection

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Published Papers (1 paper)

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Review

53 pages, 3615 KB  
Review
Progress in Aero-Engine Fault Signal Recognition and Intelligent Diagnosis
by Shunming Li, Wenbei Shi, Jiantao Lu, Haibo Zhang, Yanfeng Wang, Peng Zhang, Mengqi Feng and Yan Wang
Machines 2026, 14(1), 118; https://doi.org/10.3390/machines14010118 - 19 Jan 2026
Cited by 2 | Viewed by 1013
Abstract
Accurate diagnosis of aero-engine faults and precise signal characterization are crucial to ensuring operational reliability and service life prediction. The structural complexity of engines and the variability of operating conditions pose significant challenges for fault diagnosis and identification. Based on an analysis and [...] Read more.
Accurate diagnosis of aero-engine faults and precise signal characterization are crucial to ensuring operational reliability and service life prediction. The structural complexity of engines and the variability of operating conditions pose significant challenges for fault diagnosis and identification. Based on an analysis and emphasis on the critical importance of aero-engine fault signal recognition and diagnosis, this paper comprehensively reviews and discusses the classification and evolution of aero-engine fault signal recognition techniques. The review traces this evolution along its developmental trajectory, from classical methods to emerging approaches such as quantum signal processing for weak feature extraction. It also examines characteristics of different types of aviation engine failures and the progression of diagnostic research over time. This review provides multiple tables to compare the applicability, advantages, and limitations of various signal recognition methods and deep learning diagnostic architectures. Detailed discussions synthesize the relative merits of different approaches and their selection trade-offs. Based on this overview, the paper outlines the complexity of real aero-engine faults and key research directions. Building on these developments in fault signal recognition and diagnosis, the paper addresses the complexity and the research areas receiving particular attention within real aero-engine faults. It highlights key research areas, including handling data imbalance, adapting to variable and cross-domain conditions, and advancing diagnostic and data enhancement methods for weak composite faults. Finally, the paper analyzes the multifaceted challenges in the field and identifies future trends in aero-engine fault signal recognition and intelligent diagnosis. Full article
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