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A Review on Performance Characteristics of an Air Foil Thrust Bearing
Tribology Online, 2022 The axial loads of high-speed rotating turbo machines are supported by self-acting hydrodynamic components known as air foil thrust bearings (AFTB). The load bearing capability of these bearings depends primarily on the foil structure and secondarily on ...
Supreeth Shivakumar +3 more
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Lubricants, 2023 During the start-up process, air foil thrust bearings (AFTBs) come into contact and are prone to localized overheating and even failure. Frequent starts and stops are the major sources of wear.
Fangling Wu, Yang Hu
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Thermo-elasto-hydrodynamic analysis of bump-type air foil thrust bearings considering misalignment [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2023 In this study, a multi-pad bump-type foil thrust bearing with a taper-land height profile is investigated. A detailed thermo-elastohydrodynamic (TEHD) finite element (FE) model is used comprising all bearing pads instead of only a single pad.
Markus Eickhoff +2 more
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Procedia Technology, 2016 AbstractFoil bearings are self-acting (aerodynamic) hydrodynamic bearings supports lightly loaded shafts with major advantages like physically non-contacting high speed operation using process fluid as medium in hostile environments. However, the lack of load carrying capacity at relatively lower speeds limits their applications in heavy turbo ...
Ravikumar, R.N. +2 more
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Effect of Tilt on Thermo-Hydrodynamic Model of a Thrust Air Foil Bearing
Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive ManufacturingAbstract Air Foil Thrust bearings are essential parts of high efficiency turbomachinery and are often used to support rotating machines in the axial direction. Predicting the thermo-elastic behavior of hydrodynamic thrust bearings is particularly crucial because of the common heat management challenge. Previous research works demonstrate
Bonello Philip
exaly +3 more sources
Experimental and CFD analysis of a gas-lubricated foil thrust bearing for various foil configurations [PDF]
FME Transactions, 2023 Thrust foil bearings operating at hydrodynamic conditions are self-acting (aerodynamic) bearings that support high-speed shafts at mild loading conditions with air as a lubricant and are generally used in low-power gas turbines.
Ravikumar R.N. +3 more
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Thermal Characteristics Study of the Bump Foil Thrust Gas Bearing
Applied Sciences, 2021 In this paper, a thermo-hydrodynamic model of the bump foil thrust gas bearing is developed, which solves the coupled gas film three-dimensional energy equation, non-isothermal Reynolds equation, and the foil deformation equation.
Xiaomin Liu +3 more
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Lubricants, 2023 Gas foil thrust bearings (GFTBs) have been successfully used to support the axial load of oil-free microturbomachinery with low drag friction due to the low viscosity of gas or air used as a bearing lubricant.
Sung Ho Hwang +2 more
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International Journal of Rotating Machinery, 2017 Foil bearing provides compliant support and moderate Coulomb friction for rotor-bearing system, which is conducive to stability and reliability of high speed rotating machinery.
Tianwei Lai +4 more
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Preliminary Studies on Gas Foil Thrust Bearings with Stepped Foils
Tribology OnlineStudies on non-contact hydrodynamic foil thrust bearings (FTB) with a diameter of 224 mm were fabricated and tested for operating speeds up to 20,000 rpm.
Supreeth Shivakumar +2 more
doaj +1 more source