Performance analysis of journal bearings using ultrasonic reflection
Article
Article Title | Performance analysis of journal bearings using ultrasonic reflection |
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ERA Journal ID | 3721 |
Article Category | Article |
Authors | Kasolang, S. (Author), Ahmed, Diyar I. (Author), Dwyer-Joyce, R. S. (Author) and Yousif, B. F. (Author) |
Journal Title | Tribology International |
Journal Citation | 64, pp. 78-84 |
Number of Pages | 7 |
Year | 2013 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0301-679X |
1879-2464 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.triboint.2013.02.012 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S0301679X13000534 |
Abstract | One method that shows potential for non-invasive oil film measurement is the use of ultrasonic reflection. In the current work, ultrasonic transducer is coupled to the outside of a bearing and a wave transmitted through the bearing shell. The wave is partially reflected when it strikes an oil film. Experiments were conducted to study ultrasonic reflection coefficient technique in plain journal bearing. Measurements of multiple reflection coefficients were recorded and used to map the viscosity profiles, oil-film thickness and bearing cavitation. In addition, an alternative method using the reflection coefficient phase from film thickness measurement was used for verification. The results revealed that the evaluation of phase method is slightly lower compared to that of the amplitude method. The film thickness profile obtained in the converging region agreed well with classical hydrodynamic predictions. |
Keywords | journal bearing; ultrasound; viscosity profile; oil-film thickness |
ANZSRC Field of Research 2020 | 401708. Tribology |
401299. Fluid mechanics and thermal engineering not elsewhere classified | |
401706. Numerical modelling and mechanical characterisation | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | MARA University of Technology, Malaysia |
University of Sheffield, United Kingdom | |
Department of Mechanical and Mechatronic Engineering | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q235v/performance-analysis-of-journal-bearings-using-ultrasonic-reflection
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