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Journal Articles

Rigid Mode Vibration Control and Dynamic Behavior of Hybrid Foil–Magnetic Bearing Turbo Blower

Sena Jeong, Doyoung Jeon, Yong Bok Lee
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2017, 139(5): 052501.
Paper No: GTP-16-1405
https://doi.org/10.1115/1.4034920
Published Online: November 22, 2016
View Article titled, Rigid Mode Vibration Control and Dynamic Behavior of Hybrid Foil–Magnetic Bearing Turbo Blower
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Topics: Bearings, Magnetic bearings, Rotors, Turbochargers, Vibration, Vibration control, Stiffness, Damping, Turbomachinery, Engines
Proceedings Papers

Rigid Mode Vibration Control and Dynamic Behavior of Hybrid Foil-Magnetic Bearing (HFMB) Turbo Blower

Sena Jeong, Jungwan Kim, Doyoung Jeon, Yong Bok Lee
Proc. ASME. GT2016, Volume 7A: Structures and Dynamics, V07AT30A012, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57712
https://doi.org/10.1115/GT2016-57712
View Paper titled, Rigid Mode Vibration Control and Dynamic Behavior of Hybrid Foil-Magnetic Bearing (HFMB) Turbo Blower
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Topics: Bearings, Turbochargers, Vibration control, Vibration, Rotors, Foil bearings, Stability, Engines, Impellers, Motors
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
Journal Articles

Behavior Analysis of Controllable Electrorheology Fluid Plain Journal Bearings

Yong-Bok Lee
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. June 2015, 137(6): 061013.
Paper No: DS-14-1116
https://doi.org/10.1115/1.4029369
Published Online: June 1, 2015
View Article titled, Behavior Analysis of Controllable Electrorheology Fluid Plain Journal Bearings
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Topics: Bearings, Electrorheological fluids, Fluids, Journal bearings, Lubricants, Stress, Torque, Rotors, Electric fields, Viscosity
Proceedings Papers

Leakage Performance and Rotordynamic Characteristics of Bump Floating Ring Seals for Turbopump

Yong-Bok Lee, Kyoung-Wook Kim, Sol-Ji Ryu, Jin Taek Chung
Proc. ASME. GT2014, Volume 7B: Structures and Dynamics, V07BT32A017, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-26274
https://doi.org/10.1115/GT2014-26274
View Paper titled, Leakage Performance and Rotordynamic Characteristics of Bump Floating Ring Seals for Turbopump
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Topics: Leakage, Damping, Whirls, Locks (Waterways), Pressure drop, Rotors, Stability, Coulombs, Design, Friction
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

Dynamic Performance Characteristics of Floating-Ring Bearings With Varied Oil-Injection Swirl-Control Angles

Daniel Tamunodukobipi, Chang Ho Kim, Yong-Bok Lee
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. February 2015, 137(2): 021002.
Paper No: DS-13-1440
https://doi.org/10.1115/1.4027912
Published Online: September 10, 2014
View Article titled, Dynamic Performance Characteristics of Floating-Ring Bearings With Varied Oil-Injection Swirl-Control Angles
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Topics: Bearings, Damping, Pressure, Signals, Stability, Stress, Stiffness, Performance characterization
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
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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
Open the PDF for Feasibility Study of an Oil-Free Turbocharger Supported on Gas Foil Bearings Via On-Road Tests of a Two-Liter Class Diesel Vehicle in another window
Topics: Bearings, Clearances (Engineering), Compressors, Diesel, Engines, Foil bearings, Roads, Rotors, Thrust, 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
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
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2011-61179
https://doi.org/10.1115/IJTC2011-61179
View Paper titled, Dynamic Characteristics of the Combined Smart Bearing
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Topics: Bearings, Finite element methods, Damping, Foil bearings, Machinery, Reliability, Stability, Stiffness, Turbochargers
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
Journal Articles

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
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. February 2012, 134(2): 022501.
https://doi.org/10.1115/1.4004143
Published Online: December 2, 2011
View Article titled, Rotordynamic Performance of an Oil-Free Turbo Blower Focusing on Load Capacity of Gas Foil Thrust Bearings
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Topics: Impellers, Rotors, Stress, Thrust, Turbochargers, Thrust bearings, Foil bearings, Turbomachinery, Finite element analysis
Journal Articles

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
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2012, 134(1): 012502.
https://doi.org/10.1115/1.4004142
Published Online: October 27, 2011
View Article titled, Effects of Mesh Density on Static Load Performance of Metal Mesh Gas Foil Bearings
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Topics: Bearings, Damping, Deflection, Density, Foil bearings, Metals, Rotors, Stiffness, Stress, Wire
Proceedings Papers

Rotordynamic Performance of an Oil-Free Turbocharger Supported on Gas Foil Bearings: Effects of an Assembly Radial Clearance

Tae Ho Kim, Jangwon Lee, Chang Ho Kim, Yong-Bok Lee
Proc. ASME. GT2010, Volume 6: Structures and Dynamics, Parts A and B, 363-371, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-23243
https://doi.org/10.1115/GT2010-23243
View Paper titled, Rotordynamic Performance of an Oil-Free Turbocharger Supported on Gas Foil Bearings: Effects of an Assembly Radial Clearance
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Topics: Clearances (Engineering), Foil bearings, Manufacturing, Turbochargers, Bearings, Engines, Rotors, Deflection, Ignition, Lubricants
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
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2009-15084
https://doi.org/10.1115/IJTC2009-15084
View Paper titled, The Static Characteristics of Bump Foil Thrust Bearing Considering Tilting Condition
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Topics: Thrust bearings, Bearings, Computer simulation, Finite difference methods, Finite element methods, Foil bearings, Stress, Thrust, Turbomachinery