A numerical model for design and optimization of surface textures for tilting pad thrust bearings
A numerical model for design and optimization of surface textures for tilting pad thrust bearings
A numerical model based on the Reynolds equation to study textured tilting pad thrust bearings considering mass-conserving cavitation and thermal effects is presented. A non-uniform and adaptive finite volume method is utilized and two methods are compared and selected regarding their efficiency in handling discontinuities; specifically placing additional nodes closely around discontinuities and directly incorporating discontinuities in the discrete system. Multithreading is applied to improve the computational performance and three root-finding methods to evaluate the bearing equilibrium are compared; namely Newton-Raphson method, Broyden's method with Sherman-Morrison formula and a continuation approach with fourth-order Runge-Kutta method. Results from the equivalent untextured bearing are utilized to accelerate the computation of the textured bearing and results are validated by comparison with CFD data.
Surface Texturing, Tilting pad thrust bearing, Numerical analysis, cavitation
190-207
Gropper, Daniel
ae8ff6b6-f64b-4b49-9da0-65b153ec027b
Harvey, Terence
3b94322b-18da-4de8-b1af-56d202677e04
Wang, Ling
c50767b1-7474-4094-9b06-4fe64e9fe362
March 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)
A numerical model for design and optimization of surface textures for tilting pad thrust bearings.
Tribology International, 119, .
(doi:10.1016/j.triboint.2017.10.024).
Abstract
A numerical model based on the Reynolds equation to study textured tilting pad thrust bearings considering mass-conserving cavitation and thermal effects is presented. A non-uniform and adaptive finite volume method is utilized and two methods are compared and selected regarding their efficiency in handling discontinuities; specifically placing additional nodes closely around discontinuities and directly incorporating discontinuities in the discrete system. Multithreading is applied to improve the computational performance and three root-finding methods to evaluate the bearing equilibrium are compared; namely Newton-Raphson method, Broyden's method with Sherman-Morrison formula and a continuation approach with fourth-order Runge-Kutta method. Results from the equivalent untextured bearing are utilized to accelerate the computation of the textured bearing and results are validated by comparison with CFD data.
Text
Gropper-2018
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Accepted/In Press date: 21 October 2017
e-pub ahead of print date: 9 November 2017
Published date: March 2018
Keywords:
Surface Texturing, Tilting pad thrust bearing, Numerical analysis, cavitation
Identifiers
Local EPrints ID: 415522
URI: http://eprints.soton.ac.uk/id/eprint/415522
ISSN: 0301-679X
PURE UUID: 63200da0-d8b9-46af-8493-2ea2a66edf0e
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Date deposited: 14 Nov 2017 17:30
Last modified: 16 Mar 2024 03:24
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Author:
Daniel Gropper
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