A novel geometry optimization approach for multi-recess hydrostatic bearing pad operating in static and low-speed conditions using CFD simulation
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Date
2023-04-06
Authors
Michalec, Michal
Ondra, Martin
Svoboda, Martin
Chmelík, Jiří
Zeman, Petr
Svoboda, Petr
Jackson, Robert L.
0000-0002-8803-9043Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
Springer
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Abstract
The design of a hydrostatic bearing pad is limited to simple geometry using analytical equations or one-parameter optimization based on experimental data. This study proposes and investigates a new two-parameter method for estimating optimal hydrostatic bearing pad proportions—recess area and position, using Computational Fluid Dynamics (CFD). In this study, 3D static CFD quarter model of a multi-recess hydrostatic bearing pad assuming laminar flow is used. The CFD model was calibrated based on experimentally obtained results and the literature. The recess pressure and resulting load are evaluated for a variety of recess positions and areas. Performance factors are calculated and interpolated in the MATLAB environment. Using the proposed novel two-parameter optimization, the energetic loss was reduced by 20% compared to the classical one-parameter approach. This methodology allows versatile and effective design of optimal hydrostatic bearings operating in low-speed conditions to achieve minimum energetic loss.
Description
Citation
Tribology Letters. 2023, vol. 71, issue 2, 14 p.
https://link.springer.com/article/10.1007/s11249-023-01726-3
https://link.springer.com/article/10.1007/s11249-023-01726-3
Document type
Peer-reviewed
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Published version
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en