Numerical analysis and optimization of surface textures for a tilting pad thrust bearing
Numerical analysis and optimization of surface textures for a tilting pad thrust bearing
A thermo-hydrodynamic model previously developed by the authors is applied in this paper to study the influence of surface texturing on the performance of a tilting pad thrust bearing with offset line pivots. Utilizing an interior-point algorithm, texture depth, circumferential extent and radial extent are numerically optimized to improve three bearing performance parameters: minimum film thickness, friction torque and maximum temperature. Results are presented for various operating conditions and texture densities. It is found that, for most cases, optimum texturing parameters depend significantly on the operating conditions, optimization objective and texture density. Whereas minimum film thickness values can be increased by up to 12%, only minor improvements are achievable in terms of friction torque and maximum temperature.
Surface texturing, Tilting pad thrust bearings, Numerical analysis
134-144
Gropper, Daniel
ae8ff6b6-f64b-4b49-9da0-65b153ec027b
Harvey, Terence
3b94322b-18da-4de8-b1af-56d202677e04
Wang, Ling
c50767b1-7474-4094-9b06-4fe64e9fe362
August 2018
Gropper, Daniel
ae8ff6b6-f64b-4b49-9da0-65b153ec027b
Harvey, Terence
3b94322b-18da-4de8-b1af-56d202677e04
Wang, Ling
c50767b1-7474-4094-9b06-4fe64e9fe362
Gropper, Daniel, Harvey, Terence and Wang, Ling
(2018)
Numerical analysis and optimization of surface textures for a tilting pad thrust bearing.
Tribology International, 124, .
(doi:10.1016/j.triboint.2018.03.034).
Abstract
A thermo-hydrodynamic model previously developed by the authors is applied in this paper to study the influence of surface texturing on the performance of a tilting pad thrust bearing with offset line pivots. Utilizing an interior-point algorithm, texture depth, circumferential extent and radial extent are numerically optimized to improve three bearing performance parameters: minimum film thickness, friction torque and maximum temperature. Results are presented for various operating conditions and texture densities. It is found that, for most cases, optimum texturing parameters depend significantly on the operating conditions, optimization objective and texture density. Whereas minimum film thickness values can be increased by up to 12%, only minor improvements are achievable in terms of friction torque and maximum temperature.
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2018 Daniel's paper_pre-printed
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Accepted/In Press date: 30 March 2018
e-pub ahead of print date: 4 April 2018
Published date: August 2018
Keywords:
Surface texturing, Tilting pad thrust bearings, Numerical analysis
Identifiers
Local EPrints ID: 419685
URI: http://eprints.soton.ac.uk/id/eprint/419685
ISSN: 0301-679X
PURE UUID: b2cdcbbe-b295-4e39-8283-e44cd6f598a5
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Date deposited: 19 Apr 2018 16:30
Last modified: 16 Mar 2024 06:28
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Author:
Daniel Gropper
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