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Relevant bibliographies by topics / Air foil bearing

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Academic literature on the topic 'Air foil bearing'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Air foil bearing"

1

Ravikumar, R. N., K. J. Rathanraj, Kumar Arun, and S. Supreeth. "Experimental and CFD analysis of a gas-lubricated foil thrust bearing for various foil configurations." FME Transactions 51, no. 4 (2023): 532–40. http://dx.doi.org/10.5937/fme2304532r.

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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. This paper presents an experimental study and a detailed computational analysis of dynamic characteristics of the foil thrust bearing (FTB) in terms of load-carrying capabilities as a function of thrust runner speed and gap between the bearing assembly and the runner by considering the effect of bearing parameters such as number of foils, shape of the foils, and assemb

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2

Kim, Daejong. "Parametric Studies on Static and Dynamic Performance of Air Foil Bearings with Different Top Foil Geometries and Bump Stiffness Distributions." Journal of Tribology 129, no. 2 (2006): 354–64. http://dx.doi.org/10.1115/1.2540065.

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Experimental and analytical studies on air foil bearings have been performed extensively over the past decades, and significant improvement in load capacity and rotor dynamics stability have been reported. Often, advanced air foil bearings are believed to have complicated bump foil structure to provide unique underlying support mechanism, which in turn make the bearing very stable and have high load capacity. However, all the analytical studies on air foil bearings so far assume a circular profile of top foil with uniform bump stiffness distribution because detailed information on bump stiffne

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3

Ravikumar, R. N., K. J. Rathanraj, and V. Arun Kumar. "Experimental Studies on Air Foil Thrust Bearing Load Capabilities Considering the Effect of Foil Configuration." Applied Mechanics and Materials 813-814 (November 2015): 1007–11. http://dx.doi.org/10.4028/www.scientific.net/amm.813-814.1007.

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Abstract. Foil bearings are self-acting hydrodynamics bearings used to support lightly loaded high speed rotating machinery. The advantages that they offer to process fluid lubricated machines usingworking fluid as a lubricant (ambient air) physically non-contacting high speed operation. Foil bearings have been considered as an alternative to conventional bearings with the capacity to cater for high-speeds and hostile environment (high temperature). However, the lack of load carrying capacity at relatively lower speeds limits their applications in heavy turbo machinery and as such are highly s

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4

Nielsen, Bo B., and Ilmar F. Santos. "Transient and steady state behaviour of elasto–aerodynamic air foil bearings, considering bump foil compliance and top foil inertia and flexibility: A numerical investigation." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 231, no. 10 (2017): 1235–53. http://dx.doi.org/10.1177/1350650117689985.

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This work gives a theoretical contribution to the problem of modelling air foil bearings considering large sagging effects in the calculation of the non-linear transient and steady state response of a rigid rotor. This paper consists of two parts: the development of a miltiphysics model of the air foil bearing, and a numerical parameter study of a rigid journal supported in an air foil bearing with a partially supported top foil. The mathematical model of the air foil bearing is centred around the finite element models of both the air film and the top foil structure. These finite element model

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5

Xu, Fangcheng, Yi Sun, Guanghui Zhang, and Zhansheng Liu. "Effect of bump structural friction on the performance of bump foil bearing and rotor dynamic behavior: Experimental study." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 233, no. 5 (2018): 702–11. http://dx.doi.org/10.1177/1350650118794536.

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Air foil bearings are a kind of self-acting lubricated bearing, which have potential applications in high-speed turbomachinery. Air foil journal bearings have simple structure that consists of top foil, bump foil, and bearing sleeve, and use gas as working fluid. However, the relative motion of top foil and bump foil, bump foil and bearing sleeve occurs when dynamic pressure is generated as long as there is spinning of shaft. Thus, the friction between each part of bearing should be considered when modeling. Many papers have theoretically shown the effect of Coulomb friction between top foil a

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6

Zhou, Quan, Yu Hou, and Ru Gang Chen. "Application of Materials on Foil Thrust Bearings for Micro Turbines." Advanced Materials Research 201-203 (February 2011): 2759–62. http://dx.doi.org/10.4028/www.scientific.net/amr.201-203.2759.

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Foil bearing that has a soft surface is a kind of air bearing. The performances of foil bearings are greatly affected by the materials of bearing surface, which is called foil element. In order to estimate the performance of foil bearings, two kinds of foil thrust bearings that are made of different materials respectively were tested in a micro turbine system, which contains rotation part and static part. Load capacity and stability of these foil thrust bearings were investigated in experiments. The results show that bearing which contains rubber has higher load capacity and bearing which cont

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7

Ying, Ming, Xinghua Liu, Chongbin Zhang, Xinyang Wang, Yuhang Liu, and Yue Zhang. "The Two-Pad: A Novel Gas Foil Bearing for Fuel Cell Vehicles." International Journal of Energy Research 2023 (September 20, 2023): 1–11. http://dx.doi.org/10.1155/2023/5521171.

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Reducing costs and improving durability are essential factors for commercializing gas foil bearings, crucial components of fuel cell vehicle air compressors. In this paper, a two-pad gas foil bearing is proposed. By reducing the number of top foils, adopting a symmetrical design, and eliminating the welding step, the cost of processing and assembly is reduced, and the potential source of failure caused by welding is eliminated. The feasibility of the two-pad gas foil bearing was verified through testing on a commercial fuel cell vehicle air compressor. Then, durability testing was performed in

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8

Agrawal, Giri L. "Foil Air Bearings Cleared to Land." Mechanical Engineering 120, no. 07 (1998): 78–80. http://dx.doi.org/10.1115/1.1998-jul-8.

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This article explores use of foil air bearings in land-based turbomachinery. A machine with foil air bearings is more reliable than one with rolling element bearings because it requires fewer parts to support the rotative assembly and needs no lubrication. Foil air bearings can handle severe environmental conditions such as the ingestion of sand and dust. A reversed pilot design at the cooling flow inlet prevents large particles from entering the bearing's flow path, and smaller particles are continually flushed out of the bearing by the cooling flow. Many applications of foil air/gas bearings

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9

Supreeth, S., T. N. Raju, R. N. Ravikuma, and C. R. Mahesha. "Parametric Studies on Performance of Oil-Free Thrust Foil Bearings at Lower Speeds." Tribology in Industry 45, no. 1 (2023): 81–88. http://dx.doi.org/10.24874/ti.1407.11.22.12.

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The present work involves an experimental analysis on gas-lubricated foil thrust bearing (FTB) that has major applications in food processing units at lower operating speeds. Parametric studies include testing thrust foil bearings with various foil configurations in terms of foil thickness, foil geometry, and foil material. Novel bearing testing apparatus designed and fabricated for the purpose supported a larger diameter (224 mm) thrust foil bearing, operated at speeds ranging from 10,000 rpm to 18,000 rpm. Performance of air foil thrust bearing (AFTB) concerning static structural stiffness a

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Quan, Nguyen Minh, Pham Minh Hai, and Dinh Van Phong. "The dynamic response of a rotor supported by two foil-air bearings with an enhanced model of foil structure." International Journal of Modern Physics B 34, no. 22n24 (2020): 2040160. http://dx.doi.org/10.1142/s0217979220401608.

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Foil-air bearings have presented their advantageous performance due to their different structures when compared to traditional air bearings. However, it is the nonlinear characteristic of this kind of bearing that has drawn studies on dynamic response of the rotor-bearing system, especially rotor stability. In this paper, an improved foil dynamic model with internal bending moment included has been proposed to determine the nominal stiffness of the foil structure. Based on that, the nominal stiffness of the foil structure has been investigated with different geometry parameters of the foil str

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Dissertations / Theses on the topic "Air foil bearing"

1

Park, Soongook. "Hybrid air foil bearing with external pressurization." Thesis, [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1350.

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Briggs, Maxwell H. "High Pressure Performance of Foil Journal Bearings in Various Gases." Case Western Reserve University School of Graduate Studies / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=case1344447241.

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Hassan, Mohd Firdaus Bin. "Nonlinear analysis of rotating machinery running on foil-air bearings." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/nonlinear-analysis-of-rotating-machinery-running-on-foilair-bearings(b16f6146-676b-42c2-aeae-cab321831d78).html.

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The recently-developed simultaneous solution scheme for solving nonlinear rotordynamic systems running on foil-air bearings (FABs) has overcome the practice of decoupling the air film, foil and rotor equations that has been typically followed to reduce computational burden at the expense of accuracy. However, the published works using the simultaneous solution technique have been limited to a simple bump foil model in which the individual bumps were modelled as independent spring-damper (ISD) subsystems. The overall aim of this thesis is to present methods that enable more realistic FAB models

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Kumar, Manish. "Analytical and experimental investigations of hybrid air foil bearings." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3004.

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Dykas, Brian David. "FACTORS INFLUENCING THE PERFORMANCE OF FOIL GAS THRUST BEARINGS FOR OIL-FREE TURBOMACHINERY APPLICATIONS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=case1144261305.

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Lehn, Andreas [Verfasser], Bernhard [Akademischer Betreuer] Schweizer, and Olaf [Akademischer Betreuer] Wünsch. "Air foil thrust bearings: A thermo-elasto-hydrodynamic analysis / Andreas Lehn ; Bernhard Schweizer, Olaf Wünsch." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2017. http://d-nb.info/1134865988/34.

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Mahner, Marcel [Verfasser], Bernhard [Akademischer Betreuer] Schweizer, and Wilfried [Akademischer Betreuer] Becker. "Numerical Analyzes and Experimental Investigations of Air Foil Journal Bearings / Marcel Mahner ; Bernhard Schweizer, Wilfried Becker." Darmstadt : Universitäts- und Landesbibliothek, 2021. http://d-nb.info/1234657759/34.

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CHEN, SHIH-HAO, and 陳仕皓. "The design of foil stiffness of high speed rotation foil air bearing." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/t4pawn.

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碩士<br>國立中正大學<br>機械工程系研究所<br>106<br>Foil gas bearing have wide industrial applications, mainly in micro-turbine engine and the aircraft industry else. Micro-turbine is the small size of gas turbine, and only equipped with single layer compressor and a turbine, which make the machine system having the advantage of small volume and suitable for high- speed rotating application. Turbine engine also have the need for long-time running lubrication system. Most important, air foil have remarkable potential for both aspect. This research project applies a lubrication system to meet the technology

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Singh, Rahul. "Analysis and Parametric Identification of Air Foil Bearing Rotor System." Thesis, 2016. http://ethesis.nitrkl.ac.in/8194/1/2016_MT_214ME1304_Analysis_and_Parametrics.pdf.

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With the increasing demand for high speed turbomachinery, the dynamic analysis of rotor bearing system has become very important. Foil bearings with their exceptional feature of negligible wear has gained a very important place in the field of turbomachinery but the nonlinearities present in the bearing call for the dynamic analysis of these bearings. In the present work, a dynamic modeling approach and parametric identification scheme of a single disc rotor mounted on foil bearings is presented. Rotor is analyzed with conventional lumped parameter model. The time varying bearing forces are ob

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Chang, Shih Hung, and 張世宏. "Parallel Iterative Methods for Modeling Foil Air Bearings." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/74532234508931887858.

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博士<br>長庚大學<br>機械工程學系<br>100<br>The applications of air-lubricated bearings have several advantages over liquid-lubricated bearings, such as low frictional resistance, high rotating speed and easily accessed lubricant. Air bearings can also be operated in extreme low or high temperature environments to meet some special demands. But for some forms of air bearings, such as plain journal air bearings, the stability in high speed operation is a major concern. Compared with externally pressurized air bearings, foil air bearings can have higher load capacity and stiffness as well as increased stabil

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Books on the topic "Air foil bearing"

1

Radil, Kevin. The role of radial clearance on the performance of foil air bearings. National Aeronautics and Space Administration, Glenn Research Center, 2002.

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2

Center, NASA Glenn Research, ed. The role of radial clearance on the performance of foil air bearings. National Aeronautics and Space Administration, Glenn Research Center, 2002.

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3

C, DellaCorte, Society of Tribologists and Lubrication Engineers., and NASA Glenn Research Center, eds. Performance and durability of high temperature foil air bearing for oil-free turbomachinery. National Aeronautics and Space Administration, Glenn Research Center, 1999.

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4

DellaCorte, Christopher. A new foil air bearing test rig for use to 700⁰C and 70,000 rpm 8. National Aeronautics and Space Administration, 1997.

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5

Lehn, Andreas. Air foil thrust bearings: A thermo-elasto-hydrodynamic analysis. Universitäts- und Landesbibliothek Darmstadt, 2017.

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6

DellaCorte, Christopher. A systems approach to the solid lubrication of foil air bearings for oil-free turbomachinery. National Aeronautics and Space Administration, Glenn Research Center, 2002.

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7

Christopher, DellaCorte, NASA Glenn Research Center, Society of Tribologists and Lubrication Engineers., and United States. National Aeronautics and Space Administration., eds. Performance and durability of high temperature foil air bearings for oil-free turbomachinery. National Aeronautics and Space Administration, Glenn Research Center, 2000.

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8

DellaCorte, Christopher. Evaluation of advanced solid lubricant coatings for foil air bearings operating at 25 and 500⁰C. National Aeronautics and Space Administration, Lewis Research Center, 1998.

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9

DellaCorte, Christopher. Evaluation of advanced solid lubricant coatings for foil air bearings operating at 25 and 500⁰C. National Aeronautics and Space Administration, Lewis Research Center, 1998.

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10

DellaCorte, Christopher. Evaluation of advanced solid lubricant coatings for foil air bearings operating at 25 and 500⁰C. National Aeronautics and Space Administration, Lewis Research Center, 1998.

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Book chapters on the topic "Air foil bearing"

1

Nguyen, Minh-Quan, Minh-Hai Pham, and Van-Phong Dinh. "On the Nominal Stiffness of the Foil Structure in a First-Generation Bump-Foil Air Bearing." In Proceedings of the 2nd Annual International Conference on Material, Machines and Methods for Sustainable Development (MMMS2020). Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69610-8_119.

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2

Yang, Min Kyu, Hyu Seung Yang, Jong Ku Park, Keun Ryu, Yong Bok Lee, and Jeon Kook Lee. "Self-Lubricating Composite Coating on Air Foil Bearing Shaft by Hollow Cathode Plasma Jet." In Materials Science Forum. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-966-0.157.

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3

Łagodziński, Jakub, and Kacper Miazga. "Influence of Intermediate Foil on Air-Foil Bearings Performance and Exploitation Properties." In Applied Condition Monitoring. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-62042-8_33.

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4

Ravikovich, Y. A., Y. I. Ermilov, A. O. Pugachev, A. A. Matushkin, and D. P. Kholobtsev. "Prediction of Stiffness Coefficients for Foil Air Bearings to Perform Rotordynamic Analysis of Turbomachinery." In Proceedings of the 9th IFToMM International Conference on Rotor Dynamics. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-06590-8_104.

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Kong, Qingyi, Ye Rong, Qian Zhang, and Guanglong Wang. "Electromechanical Analysis and Experiment for a High-Speed Supported by Air Foil Bearings for Water Cooling Fuel Cells." In Conference Proceedings of the 2023 3rd International Joint Conference on Energy, Electrical and Power Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-3940-0_13.

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Busch, M. "Numerical simulation of rotor and gas-film dynamics in Schaeffler’s foil air bearings." In Gleit- und Wälzlagerungen 2023. VDI Verlag, 2023. http://dx.doi.org/10.51202/9783181024157-221.

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Conference papers on the topic "Air foil bearing"

1

Kim, Daejong, and Soonkuk Park. "Hybrid Air Foil Bearings With External Pressurization." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-16151.

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Foil bearings are widely used for oil-free microturbomachinery. One of the critical technical issues related to reliability of the foil bearings is a coating wear on the top foil and rotor during start/stops. Especially for heavily loaded foil bearings, large start torque requires a large drive motor. Bearing cooling is also mandatory for certain applications because the foil bearings can generate significant amount of heat depending on operating conditions. Usually axial flow is used through the space between the top foil and bearing sleeve. In this paper, a hybrid air foil bearing with exter

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2

Kim, Daejong, Chinedu Ezeka, and Manish Kumar. "Revisit to Stiffness of Bump Foils in Air Foil Bearings." In ASME/STLE 2007 International Joint Tribology Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ijtc2007-44319.

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Air foil bearings have compliant elastic foundation to provide compliance to bearing surface and damping. The most widely used elastic structure is the corrugated bump foil. All the currently available formulas for the bump stiffness [1–3] do not consider bending moments at the bump supports and within the straight contact patch which connects the bumps. However, for continuous bump foils, bending moments at the support points where contact is made with the bearing sleeve cannot be neglected. This paper introduces a set of new formulations for stiffness of bump foils considering the bending mo

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3

Swanson, Erik E., and Hooshang Heshmat. "Capabilities of Large Foil Bearings." In ASME Turbo Expo 2000: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/2000-gt-0387.

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An experimental program was conducted on a large compliant surface foil bearing to document its performance. This large single pad foil bearing is 100 mm in diameter, and was operated at speeds of up to 30,000 RPM. Operation at 22,000 RPM with a measured load of 4190 N was also demonstrated. During coastdown runs from 30,000 RPM, maximum amplitudes of shaft vibration did not exceed 7.6 μm while passing through the two rigid shaft modes of the system. Thermal performance of the bearing was also in accord with previously documented foil bearings. This testing also demonstrates the practicality o

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4

Agrawal, Giri L. "Foil Air/Gas Bearing Technology — An Overview." In ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-gt-347.

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This paper summarizes the chronological progress of foil air bearings for turbomachinery during the last 25 years. Descriptions of various machines which are in production are provided. The foil bearing air cycle machine on the 747 aircraft has demonstrated an MTBF (mean time between failure) in excess of 100,000 hours. Many advantages of foil air bearings are noted. Various designs of foil air bearings presently in use and their relative merits are described. Analytical methods, their limitations, and their relationships with test results are noted. Descriptions of various machines built and

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5

Rieken, Markus, Marcel Mahner, and Bernhard Schweizer. "Thermal Optimization of Air Foil Thrust Bearings Using Different Foil Materials." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-91207.

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Abstract Air foil bearings are used in turbomachinery applications with high speeds and in oil-free environments. Their numerical analysis has to account for the multiphysicality of the problem. This work features a detailed thermo-elasto-hydrodynamic model of an air foil thrust bearing with bump-type foil-structure. The bearing geometry is designed to produce a high load capacity while maintaining thermally stable conditions. The presented model considers foil deformations using a Reissner-Mindlin-type shell theory. Dry friction (stick-slip approach) between the top foil, the bump foil and th

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6

Xu, Fangcheng, Shuoxian Qiu, and Jianhua Chu. "Hybrid Air Foil Thrust Bearings Design and Performance Measurement." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-78401.

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Abstract Air foil bearings (AFBs) are widely used in high speed and low duty turbomachinery such as fuel cell air compressors, turbo blowers and micro gas turbines due to its high-speed operation, low power loss and good temperature adaptability. However, the applications of air foil thrust bearings to large power compressors such as closed-cycle supercritical CO2 turbines and high power single stage compressors still have many technical challenges due to load capacity limitation. Hybrid air foil bearing (HAFB) combines the benefits of AFB and hydrostatic air bearing. Compressed air is injecte

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Swanson, Erik E., and P. Shawn O’Meara. "The Wing Foil: A Novel Compliant Radial Foil Bearing Design." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-63185.

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To meet the challenging demands for high performance, affordable compliant foil bearings, a novel compliant support element has been developed. This recently patented, novel support element uses a multidimensional array of multiple, formed, cantilever “wing foil” tabs. The wing foil bearing has all the features required to achieve state of the art performance (Gen III for radial bearings). This paper describes two radial foil beings using the wing foil and the unique design features. Test data for a 31.75 mm diameter bearing operating in air and in steam up to 42 krpm are presented to demonstr

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8

Howard, Samuel A. "Misalignment in Gas Foil Journal Bearings: An Experimental Study." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-50806.

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As gas foil journal bearings become more prevalent in production machines, such as small gas turbine propulsion systems and microturbines, system level performance issues must be identified and quantified in order to provide for successful design practices. Several examples of system level design parameters that are not fully understood in foil bearing systems are thermal management schemes, alignment requirements, balance requirements, thrust load balancing, and others. In order to address some of these deficiencies and begin to develop guidelines, this paper presents a preliminary experiment

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9

Dykas, Brian, Joseph Prahl, Christopher DellaCorte, and Robert Bruckner. "Thermal Management Phenomena in Foil Gas Thrust Bearings." In ASME Turbo Expo 2006: Power for Land, Sea, and Air. ASMEDC, 2006. http://dx.doi.org/10.1115/gt2006-91268.

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Thrust foil gas bearings operate at high speeds on a very thin fluid film which experiences high shear. Shear induced viscous losses result in localized heating which must be managed to prevent thermal distortions and failure. The current work examines the need for thermal management in thrust foil bearings as evidenced by reduced performance in uncooled bearings. Measured bearing power loss is a few hundred watts from twenty-five to fifty-five krpm (89–196 m/s runner surface velocity based on mean bearing diameter). Modeling of the thrust runner demonstrates a potential for stress-induced run

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10

Heshmat, Hooshang, James F. Walton, and Crystal A. Heshmat. "On the Coupling of Foil Bearing Supported Rotors: Part 1 — Analysis." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27821.

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The expanded application of high-speed rotor systems operating on compliant foil bearings will be greatly enhanced with the ability to adequately couple multiple shaft systems with differing bearing systems and dynamic performance. In this paper the results of an analytical tradeoff study assessing coupling dynamic characteristics and their impact on coupled rotor-bearing system dynamics are presented. This analysis effort was completed in an effort to establish the form of characteristics needed to couple foil bearing supported rotors to ball bearing supported rotors, other foil bearing suppo

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