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Proceedings Papers

Experimental and Numerical Investigation of the High-Speed Instability of Aerodynamic Foil Journal Bearings for Micro Turbomachinery

Kei Somaya, Toru Yamashita, Shigeka Yoshimoto
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 243-245, October 7–10, 2012
Paper No: IJTC2012-61130
DOI: https://doi.org/10.1115/IJTC2012-61130
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Topics: Journal bearings, Turbomachinery, Foil bearings, Rotors, Compressors, Durability, Frequency response, High temperature, Stability
Proceedings Papers

New Generation of Water Lubricated Foil Bearing: Numerical Models and Experimental Verification

Artur Olszewski, Michał Wodtke, Rafał Gawarkiewicz
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 177-179, October 7–10, 2012
Paper No: IJTC2012-61105
DOI: https://doi.org/10.1115/IJTC2012-61105
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Topics: Computer simulation, Foil bearings, Water, Bearings, Computers, Fluids, Design, Engineering prototypes, Fluid dynamics, Fluid structure interaction
Proceedings Papers

A Fully Coupled Fluid-Structure-Interaction Model for Foil Gas Bearings

Wei Zhang, Abbas A. Alahyari, Louis Chiappetta
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 151-158, October 7–10, 2012
Paper No: IJTC2012-61019
DOI: https://doi.org/10.1115/IJTC2012-61019
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Topics: Fluid structure interaction, Gas bearings, Fluids, Stress, Bearings, Computer simulation, Computer software, Foil bearings, Lubricants, Metals
Proceedings Papers

Extended 3-D Thermo-Hydrodynamic Model of Radial Foil Bearing

Daejong Kim, Jeongpill Ki, Youngcheol Kim, Kookyoung Ahn
Proc. ASME. IJTC2011, ASME/STLE 2011 Joint Tribology Conference, 151-154, October 24–26, 2011
Paper No: IJTC2011-61129
DOI: https://doi.org/10.1115/IJTC2011-61129
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Topics: Foil bearings, Thermohydrodynamics, Rotors, Bearings, Computational fluid dynamics, Turbines, Boundary-value problems, Contact resistance, Cooling, Energy generation
Proceedings Papers

Vibration Control of a High Speed Rotor Supported by the Combined Smart Bearing

Se Na Jeong, Tae Ho Kim, Chang Ho Kim, Yong Bok Lee
Proc. ASME. IJTC2011, ASME/STLE 2011 Joint Tribology Conference, 333-335, October 24–26, 2011
Paper No: IJTC2011-61177
DOI: https://doi.org/10.1115/IJTC2011-61177
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Topics: Bearings, Rotors, Vibration control, Design, Dynamic analysis, Dynamic stability, Foil bearings, Load bearing capacity, Machinery, Magnetic bearings
Proceedings Papers

Dynamic Characteristics of the Combined Smart Bearing

Yong Bok Lee, Kyung Min Lee, Jin-Taek Chung, Seung Jong Kim, Se Na Jeong
Proc. ASME. IJTC2011, ASME/STLE 2011 Joint Tribology Conference, 337-339, October 24–26, 2011
Paper No: IJTC2011-61179
DOI: https://doi.org/10.1115/IJTC2011-61179
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Topics: Bearings, Finite element methods, Damping, Foil bearings, Machinery, Reliability, Stability, Stiffness, Turbochargers
Proceedings Papers

Five Millimeter Air Foil Bearing Operating at 350,000 RPM in a Micro Electric Motor Drive

Daejong Kim, Md. Saddam Hossain, Soo-Jung Son, Chul-Jin Choi, Daniel Kra¨henbu¨hl
Proc. ASME. IJTC2011, ASME/STLE 2011 Joint Tribology Conference, 163-166, October 24–26, 2011
Paper No: IJTC2011-61146
DOI: https://doi.org/10.1115/IJTC2011-61146
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Topics: Electric motors, Foil bearings, Sintering, Design, Electroplating, X-ray lithography, Manufacturing, Motor drives, Permanent magnets, Testing
Proceedings Papers

A Fully Coupled 3D Finite Element Analysis for a Bump-Type Compliant Foil Bearing

Serdar Aksoy, M. Bulut Coskun, Mahmut F. Aksit
Proc. ASME. IJTC2011, ASME/STLE 2011 Joint Tribology Conference, 131-134, October 24–26, 2011
Paper No: IJTC2011-61066
DOI: https://doi.org/10.1115/IJTC2011-61066
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Topics: Finite element analysis, Foil bearings, Damping, Geometry, Pressure, Shapes, Sheet metal, Stability, Stress, Wedges
Proceedings Papers

A Simple FEM Model for Foil Bearings Under Differential Pressure

Serdar Aksoy, Mahmut Faruk Aksit, Yahya Dogu
Proc. ASME. IJTC2010, STLE/ASME 2010 International Joint Tribology Conference, 163-166, October 17–20, 2010
Paper No: IJTC2010-41257
DOI: https://doi.org/10.1115/IJTC2010-41257
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Topics: Finite element methods, Finite element model, Foil bearings, Pressure
Proceedings Papers

The Static Characteristics of Bump Foil Thrust Bearing Considering Tilting Condition

Tae-Young Kim, Dong-Jin Park, Yong-Bok Lee
Proc. ASME. IJTC2009, ASME/STLE 2009 International Joint Tribology Conference, 189-191, October 19–21, 2009
Paper No: IJTC2009-15084
DOI: https://doi.org/10.1115/IJTC2009-15084
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Topics: Thrust bearings, Bearings, Computer simulation, Finite difference methods, Finite element methods, Foil bearings, Stress, Thrust, Turbomachinery
Proceedings Papers

Experimental Structural Stiffness and Damping in a 2 nd Generation Foil Bearing for Increasing Shaft Temperatures

Luis San Andre´s, Keun Ryu
Proc. ASME. IJTC2009, ASME/STLE 2009 International Joint Tribology Conference, 209-211, October 19–21, 2009
Paper No: IJTC2009-15188
DOI: https://doi.org/10.1115/IJTC2009-15188
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Topics: Damping, Foil bearings, Stiffness, Temperature, Bearings, Excitation, Clearances (Engineering), Deflection, Energy dissipation, Gas turbines
Proceedings Papers

FDM Based Analysis of Gas Lubricated Foil Journal Bearing

Nikita Makwana
Proc. ASME. IJTC2009, ASME/STLE 2009 International Joint Tribology Conference, 175-178, October 19–21, 2009
Paper No: IJTC2009-15066
DOI: https://doi.org/10.1115/IJTC2009-15066
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Topics: Journal bearings, Foil bearings, Stress, Bearings, Computer software, Film thickness, Fluid films, Gas bearings, Lubricants, Machinery
Proceedings Papers

Effect of Mechanical Preloads on the Dynamic Performance of Gas Foil Bearings

Tae Ho Kim, Luis San Andre´s
Proc. ASME. IJTC2008, STLE/ASME 2008 International Joint Tribology Conference, 379-381, October 20–22, 2008
Paper No: IJTC2008-71195
DOI: https://doi.org/10.1115/IJTC2008-71195
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Topics: Foil bearings, Bearings, Rotors, Clearances (Engineering), Delays, Density, Limit cycles, Maintenance, Metals, Stress
Proceedings Papers

High Pressure Performance of Foil Journal Bearings in Various Gases

Maxwell H. Briggs, Joseph M. Prahl, Robert Bruckner, Brian Dykas
Proc. ASME. IJTC2008, STLE/ASME 2008 International Joint Tribology Conference, 403-405, October 20–22, 2008
Paper No: IJTC2008-71274
DOI: https://doi.org/10.1115/IJTC2008-71274
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Topics: Gases, High pressure (Physics), Journal bearings, Bearings, Carbon dioxide, Foil bearings, Nitrogen, Helium, Lubricants, Pressure
Proceedings Papers

Technical Development Path for Foil Gas Bearings

Christopher DellaCorte
Proc. ASME. IJTC2008, STLE/ASME 2008 International Joint Tribology Conference, 299-302, October 20–22, 2008
Paper No: IJTC2008-71024
DOI: https://doi.org/10.1115/IJTC2008-71024
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Topics: Gas bearings, Foil bearings, Cycles, Gas turbines, Generators, Machinery, Microturbines, Propulsion, Turbochargers
Proceedings Papers

The Dynamic Performance Analysis of Foil Journal Bearings Considering Coulomb Friction: Rotating Unbalance Response

D. H. Lee, Y. C. Kim, K. W. Kim
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 253-255, October 22–24, 2007
Paper No: IJTC2007-44225
DOI: https://doi.org/10.1115/IJTC2007-44225
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Topics: Coulombs, Friction, Journal bearings, Design, Excitation, Finite element methods, Foil bearings, Pressure, Rotors, Strips
Proceedings Papers

Effect of Side Feed Pressurization on the Dynamic Performance of Gas Foil Bearings

Luis San Andre´s, Tae Ho Kim
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 981-983, October 22–24, 2007
Paper No: IJTC2007-44047
DOI: https://doi.org/10.1115/IJTC2007-44047
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Topics: Foil bearings, Bearings, Pressure, Rotors, Cooling, Damping, Flow (Dynamics), Gas flow, Gas turbines, Heat
Proceedings Papers

A New Foil Bearing Dynamic Structural Model

Se´bastien Le Lez, Mihai¨ Arghir, Jean Frene
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 993-995, October 22–24, 2007
Paper No: IJTC2007-44110
DOI: https://doi.org/10.1115/IJTC2007-44110
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Topics: Foil bearings, Coulombs, Damping, Differential equations, Dynamic models, Engineering simulation, Finite element analysis, Friction, Simulation, Stiffness
Proceedings Papers

Evaluation of DLC Coatings for Foil Bearing Applications

Said Jahanmir, Hooshang Heshmat, Crystal Heshmat, Osman Eryilmaz, Ali Erdemir
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 5-7, October 22–24, 2007
Paper No: IJTC2007-44035
DOI: https://doi.org/10.1115/IJTC2007-44035
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Topics: Diamond films, Foil bearings, Coatings, Disks, Cycles, Temperature, Tribology, Design, Performance characterization, Thrust
Proceedings Papers

Revisit to Stiffness of Bump Foils in Air Foil Bearings

Daejong Kim, Chinedu Ezeka, Manish Kumar
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 311-313, October 22–24, 2007
Paper No: IJTC2007-44319
DOI: https://doi.org/10.1115/IJTC2007-44319
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Topics: Foil bearings, Stiffness, Bearings, Algebra, Computer software, Computers, Damping