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Journal Articles

Design Optimization of Gas Foil Thrust Bearings for Maximum Load Capacity

Tae Ho Kim, Moonsung Park, Tae Won Lee
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. May 2017, 139(3): 031705.
Paper No: TRIB-16-1248
https://doi.org/10.1115/1.4034616
Published Online: February 20, 2017
View Article titled, Design Optimization of Gas Foil Thrust Bearings for Maximum Load Capacity
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Topics: Bearings, Film thickness, Rotors, Stress, Thrust bearings, Pressure
Proceedings Papers

Duffing’s Vibration of a Rotor Supported on Gas Foil Bearings With Base Excitation: Measurements and Model Predictions

Tae Ho Kim, Young Min Kim, Jongsung Lee, Moon Sung Park, Kyoung-Ku Ha, Changha Lee, Chimyung Kim
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A005, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56281
https://doi.org/10.1115/GT2016-56281
View Paper titled, Duffing’s Vibration of a Rotor Supported on Gas Foil Bearings With Base Excitation: Measurements and Model Predictions
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Topics: Excitation, Foil bearings, Rotors, Vibration, Stress, Thrust, Eddies (Fluid dynamics), Eddy currents (Electricity), Impellers, Nonlinear equations
Proceedings Papers

Identification of Dynamic Characteristics of Gas Foil Thrust Bearings Using Base Excitation

Tae Ho Kim, Moon Sung Park, Jongsung Lee, Young Min Kim, Kyoung-Ku Ha, Jeonghee Park, Changha Lee, Chimyung Kim
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A006, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56282
https://doi.org/10.1115/GT2016-56282
View Paper titled, Identification of Dynamic Characteristics of Gas Foil Thrust Bearings Using Base Excitation
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Topics: Excitation, Thrust bearings, Stress, Bearings, Damping, Displacement, Rotors, Stiffness, Thrust, Turbomachinery
Proceedings Papers

Rotordynamic Performance Measurements and Predictions of a Rotor Supported on Multilayer Gas Foil Journal Bearings for Microturbomachinery

Jongsung Lee, Young Min Kim, Moon Sung Park, Tae Ho Kim, Kyoung Ku Ha, Changha Lee, Sae Hoon Kim
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A007, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56283
https://doi.org/10.1115/GT2016-56283
View Paper titled, Rotordynamic Performance Measurements and Predictions of a Rotor Supported on Multilayer Gas Foil Journal Bearings for Microturbomachinery
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Topics: Journal bearings, Rotors, Temperature, Impellers, Clearances (Engineering), Displacement, Damping, Engines, Motors, Sensors
Proceedings Papers

Rotordynamic Performance Predictions of Flexure Pivot Tilting Pad Bearings and Comparison to Published Test Data

Tae Ho Kim, Kyung Eun Jang, Tae Gyu Choi
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A008, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56284
https://doi.org/10.1115/GT2016-56284
View Paper titled, Rotordynamic Performance Predictions of Flexure Pivot Tilting Pad Bearings and Comparison to Published Test Data
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Topics: Bearings, Bending (Stress), Stiffness, Damping, Rotors, Stress, Whirls, Pressure, Stability, Deflection
Journal Articles

Rotordynamic Behavior of 225 kW (300 HP) Class PMS Motor–Generator System Supported by Gas Foil Bearings

Bok Seong Choe, Tae Ho Kim, Chang Ho Kim, Yong Bok Lee
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2015, 137(9): 092505.
Paper No: GTP-14-1650
https://doi.org/10.1115/1.4029712
Published Online: September 1, 2015
View Article titled, Rotordynamic Behavior of 225 kW (300 HP) Class PMS Motor–Generator System Supported by Gas Foil Bearings
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Topics: Bearings, Engines, Generators, Motors, Rotors, Foil bearings
Proceedings Papers

Static Structural Characterization of Multilayer Gas Foil Journal Bearings

Tae Ho Kim, Jongsung Lee, Young Min Kim
Proc. ASME. GT2015, Volume 7A: Structures and Dynamics, V07AT31A026, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43959
https://doi.org/10.1115/GT2015-43959
View Paper titled, Static Structural Characterization of Multilayer Gas Foil Journal Bearings
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Topics: Bearings, Clearances (Engineering), Damping, Deflection, Displacement, Dry friction, Foil bearings, Journal bearings, Manufacturing, Rotors
Proceedings Papers

Design Optimization of Gas Foil Thrust Bearings for Maximum Load Capacity

Tae Ho Kim, Tae Won Lee
Proc. ASME. GT2015, Volume 7A: Structures and Dynamics, V07AT31A028, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43999
https://doi.org/10.1115/GT2015-43999
View Paper titled, Design Optimization of Gas Foil Thrust Bearings for Maximum Load Capacity
Open the PDF for Design Optimization of Gas Foil Thrust Bearings for Maximum Load Capacity in another window
Topics: Design, Optimization, Stress, Thrust bearings, Drag (Fluid dynamics), Film thickness, Pressure, Rotors, Torque, Algebra
Proceedings Papers

Effects of Mechanical Preloads on the Rotordynamic Performance of a Rotor Supported on 3 Pad Gas Foil Journal Bearings

Kyuho Sim, Bonjin Koo, Jong Sung Lee, Tae Ho Kim
Proc. ASME. GT2014, Volume 7B: Structures and Dynamics, V07BT32A015, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25849
https://doi.org/10.1115/GT2014-25849
View Paper titled, Effects of Mechanical Preloads on the Rotordynamic Performance of a Rotor Supported on 3 Pad Gas Foil Journal Bearings
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Topics: Journal bearings, Rotors, Bearings, Stress, Strips, Clearances (Engineering), Displacement, Electric motors, Permanent magnets, Sensors
Proceedings Papers

Rotordynamic Behavior of 225 kW (300 HP) Class PMS Motor-Generator System Supported by Gas Foil Bearings

Bok Seong Choe, Tae Ho Kim, Chang Ho Kim, Yong Bok Lee
Proc. ASME. GT2014, Volume 7A: Structures and Dynamics, V07AT31A037, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-27286
https://doi.org/10.1115/GT2014-27286
View Paper titled, Rotordynamic Behavior of 225 kW (300 HP) Class PMS Motor-Generator System Supported by Gas Foil Bearings
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Topics: Engines, Foil bearings, Generators, Motors, Rotors, Bearings, Damping, Delays, Inspection, Journal bearings
Journal Articles

Effects of Mechanical Preloads on the Rotordynamic Performance of a Rotor Supported on Three-Pad Gas Foil Journal Bearings

Kyuho Sim, Bonjin Koo, Jong Sung Lee, Tae Ho Kim
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2014, 136(12): 122503.
Paper No: GTP-14-1215
https://doi.org/10.1115/1.4027745
Published Online: June 27, 2014
View Article titled, Effects of Mechanical Preloads on the Rotordynamic Performance of a Rotor Supported on Three-Pad Gas Foil Journal Bearings
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Topics: Clearances (Engineering), Rotors, Bearings, Thrust, Stress
Proceedings Papers

Feasibility Study of an Oil-Free Turbocharger Supported on Gas Foil Bearings via On-Road Tests of a 2-Liter Class Diesel Vehicle

Kyuho Sim, Suk Bum Kwon, Tae Ho Kim, Yong-Bok Lee
Proc. ASME. GT2012, Volume 7: Structures and Dynamics, Parts A and B, 945-956, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-69586
https://doi.org/10.1115/GT2012-69586
View Paper titled, Feasibility Study of an Oil-Free Turbocharger Supported on Gas Foil Bearings via On-Road Tests of a 2-Liter Class Diesel Vehicle
Open the PDF for Feasibility Study of an Oil-Free Turbocharger Supported on Gas Foil Bearings via On-Road Tests of a 2-Liter Class Diesel Vehicle in another window
Topics: Diesel, Foil bearings, Roads, Turbochargers, Vehicles, Rotors, Bearings, Shock (Mechanics), Compressors, Engines
Journal Articles

Feasibility Study of an Oil-Free Turbocharger Supported on Gas Foil Bearings Via On-Road Tests of a Two-Liter Class Diesel Vehicle

Yong-Bok Lee, Suk Bum Kwon, Tae Ho Kim, Kyuho Sim
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2013, 135(5): 052701.
Paper No: GTP-12-1375
https://doi.org/10.1115/1.4007883
Published Online: April 23, 2013
View Article titled, Feasibility Study of an Oil-Free Turbocharger Supported on Gas Foil Bearings Via On-Road Tests of a Two-Liter Class Diesel Vehicle
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Topics: Bearings, Clearances (Engineering), Compressors, Diesel, Engines, Foil bearings, Roads, Rotors, Thrust, Turbines
Journal Articles

Rotordynamic Performance of Shimmed Gas Foil Bearings for Oil-Free Turbochargers

Kyuho Sim, Lee Yong-Bok, Tae Ho Kim, Jangwon Lee
Journal: Journal of Tribology
Publisher: ASME
Article Type: Applications
J. Tribol. July 2012, 134(3): 031102.
https://doi.org/10.1115/1.4005892
Published Online: June 25, 2012
View Article titled, Rotordynamic Performance of Shimmed Gas Foil Bearings for Oil-Free Turbochargers
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Topics: Bearings, Rotors, Stress, Compressors, Diesel engines, Deflection, Turbochargers, Foil bearings, Engines, Turbines
Proceedings Papers

Rotordynamic Performance of an Oil-Free Turbo Blower Focusing on Load Capacity of Gas Foil Thrust Bearings

Tae Ho Kim, Yong-Bok Lee, Tae Young Kim, Kyong Ho Jeong
Proc. ASME. GT2011, Volume 6: Structures and Dynamics, Parts A and B, 643-650, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-46471
https://doi.org/10.1115/GT2011-46471
View Paper titled, Rotordynamic Performance of an Oil-Free Turbo Blower Focusing on Load Capacity of Gas Foil Thrust Bearings
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Topics: Stress, Thrust bearings, Turbochargers, Rotors, Design, Stability, Bearings, Turbomachinery, Compressed air, Finite element analysis
Proceedings Papers

Thermal Performance of a Bump Type Gas Foil Bearing Floating on a Hollow Shaft for Increasing Rotating Speed and Static Load

Kyuho Sim, Jin Woo Song, Yong-Bok Lee, Tae Ho Kim
Proc. ASME. GT2011, Volume 6: Structures and Dynamics, Parts A and B, 651-662, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-46499
https://doi.org/10.1115/GT2011-46499
View Paper titled, Thermal Performance of a Bump Type Gas Foil Bearing Floating on a Hollow Shaft for Increasing Rotating Speed and Static Load
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Topics: Foil bearings, Stress, Temperature, Ball bearings, Bearings, Temperature gradient, Wire, Electric motors, Heat, Materials properties
Proceedings Papers

Effects of Mesh Density on Static Load Performance of Metal Mesh Gas Foil Bearings

Yong-Bok Lee, Chang Ho Kim, Tae Ho Kim, Tae Young Kim
Proc. ASME. GT2011, Volume 6: Structures and Dynamics, Parts A and B, 675-683, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-46589
https://doi.org/10.1115/GT2011-46589
View Paper titled, Effects of Mesh Density on Static Load Performance of Metal Mesh Gas Foil Bearings
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Topics: Density, Foil bearings, Metals, Stress, Rotors, Damping, Deflection, Bearings, Stiffness, Spin (Aerodynamics)
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
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2011-61177
https://doi.org/10.1115/IJTC2011-61177
View Paper titled, Vibration Control of a High Speed Rotor Supported by the Combined Smart Bearing
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Topics: Bearings, Rotors, Vibration control, Design, Dynamic analysis, Dynamic stability, Foil bearings, Load bearing capacity, Machinery, Magnetic bearings
Journal Articles

Development and Performance Measurement of Oil-Free Turbocharger Supported on Gas Foil Bearings

Yong-Bok Lee, Dong-Jin Park, Tae Ho Kim, Kyuho Sim
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2012, 134(3): 032506.
https://doi.org/10.1115/1.4004719
Published Online: January 4, 2012
View Article titled, Development and Performance Measurement of Oil-Free Turbocharger Supported on Gas Foil Bearings
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Topics: Bearings, Compressors, Flow (Dynamics), Foil bearings, Pressure, Rotors, Temperature, Turbines, Turbochargers, Thrust
Journal Articles

Thermal Performance Measurement of a Bump Type Gas Foil Bearing Floating on a Hollow Shaft for Increasing Rotating Speed and Static Load

Tae Ho Kim, Jin Woo Song, Yong-Bok Lee, Kyuho Sim
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Technical Briefs
J. Eng. Gas Turbines Power. February 2012, 134(2): 024501.
https://doi.org/10.1115/1.4004401
Published Online: December 8, 2011
View Article titled, Thermal Performance Measurement of a Bump Type Gas Foil Bearing Floating on a Hollow Shaft for Increasing Rotating Speed and Static Load
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Topics: Bearings, Foil bearings, Stress, Temperature, Turbomachinery, Temperature measurement, Clearances (Engineering), Strain gages, Thermocouples