PSI - Issue 39

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect StructuralIntegrity Procedia 00 (2019) 000–000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 39 (2022) 333–346

© 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of CP 2021 – Guest Editors Abstract When there is bearing misalignment, shaft bow, mass unbalance, or cracks, rotors are considered faulty. The defect caused by cracks is the most difficult of the four to diagnose since cracks are not apparent. Cracks can’t be identified with displacement gauges, and they can't be fixed with balancing machineries. As a result, a rotor with cracks poses the greatest risk when compared to rotors with any other flaw. Signal-based methods, parametric methods, model-based methods, and modal-based methods are all used to detect cracks. Extensive research has gone into establishing various methodologies and procedures to efficiently model and analyse rotor cracks during the last four decades, resulting in countless technical papers on the subject. For the benefit of the research community, a brief periodic review of such a corpus of work is needed. This paper conducts a chronological review of cracked rotor literature of the last decade, spanning the years 2010 to 2021. On their research, methods, and outcomes, the experimental investigations, mathematical modelling, and computation algorithms are given in condensed form. An attempt has been made to note the potential areas of further research for each piece of literature. © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of CP 2021 – Guest Editors Keywords: Crack identification; Crack localization; Finite element; Wavelet transform; Jeffcot/de Laval rotor; Active magnetic bearing ' y 7th International Conference on Crack Paths A Decadal Review of Various Modelling and Analysis of Cracked Rotors Nabam Teyi a *, Sandeep Singh a a Department of Mechanical Engineering, North Eastern Regional Institute of Science and Technology, Nirjuli, Arunachal Pradesh 791109, India N

* Corresponding author. Tel: +91 8974393401 E-mail address: nbtnerist@gmail.com; nbt@nerist.ac.in

2452-3216© 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of CP 2021 – Guest Editors

2452-3216 © 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of CP 2021 – Guest Editors 10.1016/j.prostr.2022.03.103