publication . Article . Other literature type . 2018

Improvement of Thrust Bearing Calculation Considering the Convectional Heating within the Space between the Pads

Monika Chmielowiec-Jablczyk; Andreas Schubert; Christian Kraft; Hubert Schwarze; Michal Wodtke; Michal Wasilczuk;
Open Access English
  • Published: 26 Feb 2018 Journal: Lubricants (issn: 2075-4442, Copyright policy)
  • Publisher: MDPI AG
  • Country: Germany
Abstract
A modern thrust bearing tool is used to estimate the behavior of tilting pad thrust bearings not only in the oil film between pad and rotating collar, but also in the space between the pads. The oil flow in the space significantly influences the oil film inlet temperature and the heating of pad and collar. For that reason, it is necessary to define an oil mixing model for the space between the pads. In the bearing tool, the solutions of the Reynolds equation including a cavitation model, the energy equation and the heat transfer equation are done iteratively with the finite volume method by considering a constant flow rate. Both effects—laminar/turbulent flow an...
Subjects
arXiv: Physics::Fluid Dynamics
free text keywords: article, hydrodynamic bearing, thrust bearing calculation, thrust bearing test rig, thrust tilting pad, Science, Q, ddc:621, ddc:621.8, Reynolds equation, Laminar flow, Thrust bearing, law.invention, law, Bearing (mechanical), Centrifugal force, Heat transfer, Turbulence, Fluid bearing, Metallurgy, Engineering, business.industry, business, Mechanics
Related Organizations

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8. Wodtke, M.; Fillon, M.; Schubert, A.; Wasilczuk, M. Study of the Influence of Heat Convection Coefficient on Predicted Performance of a Large Tilting-Pad Thrust Bearing. ASME J. Tribol. 2013, 108, 231-248. [CrossRef] 9. Pajaczkowski, P. Simulation of Transient States in Large Hydrodynamic Thrust Bearing. Ph.D. Thesis, Gdansk University of Technology, Gdan´ sk, Poland, 2010.

10. Kraft, C.; Schwarze, H. Benutzeranleitung für das Axialgleitlagerberechnungsprogramm COMBROS-A, Version 1.4; TU Clausthal: Clausthal-Zellerfeld, Germany, 2017.

11. Elrod, H.G. A Cavitation Algorithm. ASME J. Lubr. Technol. 1981, 103, 350-354. [CrossRef] 12. Vohr, J.H. Discussion about “Mixing Inlet Temperatures in Hydrodynamic Bearings” from Heshmat and Pinkus. ASME J. Tribol. 1986, 108, 231-248.

13. Wasilczuk, M.; Wodtke, M.; Braun, W. Centrally Pivoted Tilting Pad Thrust Bearing with Carbon-Based Coated Collar-Experimental Results of Low-and Medium-Speed Operation. Tribol. Trans. 2015, 58, 882-893. [CrossRef] [OpenAIRE]

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publication . Article . Other literature type . 2018

Improvement of Thrust Bearing Calculation Considering the Convectional Heating within the Space between the Pads

Monika Chmielowiec-Jablczyk; Andreas Schubert; Christian Kraft; Hubert Schwarze; Michal Wodtke; Michal Wasilczuk;