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Evaluation of the Thermal Effects in Tilting Pad Bearing
Joint Authors
Daniel, G. B.
Cavalca, Katia Lucchesi
Source
International Journal of Rotating Machinery
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-11-02
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Abstract EN
The analysis of thermal effects is of expressive importance in the context of rotordynamics to evaluate the behavior of hydrodynamic bearings because these effects can influence their dynamic characteristics under specific operational conditions.
For this reason, a thermohydrodynamic model is developed in this work, in which the pressure distribution in the oil film and the temperature distribution are calculated together.
From the pressure distribution, the velocity distribution field is determined, as well as the viscous dissipation, and consequently, the temperature distribution.
The finite volume method is applied to solve the Reynolds equation and the energy equation in the thermohydrodynamic model (THD).
The results show that the temperature is higher as the rotational speed increases due to the shear rate of the oil film.
The maximum temperature in the bearing occurs in the overloaded pad, near the outlet boundary.
The experimental tests were performed in a tilting pad journal bearing operating in a steam turbine to validate the model.
The comparison between the experimental and numerical results provides a good correlation.
The thermohydrodynamic lubrication developed in this assignment is promising to consistently evaluate the behavior of the tilting pad journal bearing operating in relatively high rotational speeds.
American Psychological Association (APA)
Daniel, G. B.& Cavalca, Katia Lucchesi. 2013. Evaluation of the Thermal Effects in Tilting Pad Bearing. International Journal of Rotating Machinery،Vol. 2013, no. 2013, pp.1-17.
https://search.emarefa.net/detail/BIM-493629
Modern Language Association (MLA)
Daniel, G. B.& Cavalca, Katia Lucchesi. Evaluation of the Thermal Effects in Tilting Pad Bearing. International Journal of Rotating Machinery No. 2013 (2013), pp.1-17.
https://search.emarefa.net/detail/BIM-493629
American Medical Association (AMA)
Daniel, G. B.& Cavalca, Katia Lucchesi. Evaluation of the Thermal Effects in Tilting Pad Bearing. International Journal of Rotating Machinery. 2013. Vol. 2013, no. 2013, pp.1-17.
https://search.emarefa.net/detail/BIM-493629
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-493629