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Uhn Joo Na
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Proceedings Papers

Optimized Realization of Fault-Tolerant Heteropolar Magnetic Bearings for Active Vibration Control

Uhn Joo Na, Alan Palazzolo
Proc. ASME. DETC99, Volume 7A: 17th Biennial Conference on Mechanical Vibration and Noise, 1105-1116, September 12–16, 1999
Publisher: American Society of Mechanical Engineers
Paper No: DETC99/VIB-8258
https://doi.org/10.1115/DETC99/VIB-8258
View Paper titled, Optimized Realization of Fault-Tolerant Heteropolar Magnetic Bearings for Active Vibration Control
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Topics: Magnetic bearings, Optimization, Vibration control
Proceedings Papers

Fault Tolerant Control of Magnetic Bearings

Uhn Joo Na, Andrew Provenza, Alan B. Palazzolo, Benjamin Choi, Gerald Montague, Albert Kascak
Proc. ASME. IDETC-CIE2001, Volume 6C: 18th Biennial Conference on Mechanical Vibration and Noise, 3135-3141, September 9–12, 2001
Publisher: American Society of Mechanical Engineers
Paper No: DETC2001/VIB-21751
https://doi.org/10.1115/DETC2001/VIB-21751
View Paper titled, Fault Tolerant Control of Magnetic Bearings
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Topics: Magnetic bearings, Failure, Algorithms, Actuators, Bearings, Currents, Databases, Machinery, Magnetic fields, Simulation
Proceedings Papers

Fail Safe, High Temperature Magnetic Bearing for High Efficiency Gas Turbine Engine Applications

Alan Palazzolo, Gerald T. Montague, Yeonkyu Kim, Andrew Kenny, Randall Tucker, Uhn Joo Na, Shuliang Lei, Nathan Lingenfelter, Andy Provenza, Albert F. Kascak
Proc. ASME. GT2001, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T03A054, June 4–7, 2001
Publisher: American Society of Mechanical Engineers
Paper No: 2001-GT-0295
https://doi.org/10.1115/2001-GT-0295
View Paper titled, Fail Safe, High Temperature Magnetic Bearing for High Efficiency Gas Turbine Engine Applications
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Topics: Gas turbines, High temperature, Magnetic bearings, Actuators, Control algorithms, Design, Failure, Stiffness
Proceedings Papers

Fail Safe, High Temperature Magnetic Bearings

Thomas Minihan, Alan Palazzolo, Yeonkyu Kim, Shuliang Lei, Andrew Kenny, Uhn Joo Na, Randy Tucker, Jason Preuss, Andrew Hunt, Bart Carter, Andy Provenza, Gerald Montague, Albert Kascak
Proc. ASME. GT2002, Volume 4: Turbo Expo 2002, Parts A and B, 1107-1116, June 3–6, 2002
Publisher: American Society of Mechanical Engineers
Paper No: GT2002-30595
https://doi.org/10.1115/GT2002-30595
View Paper titled, Fail Safe, High Temperature Magnetic Bearings
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Topics: High temperature, Magnetic bearings, Actuators, Control algorithms, Failure, Stiffness, Design, Simulation results
Journal Articles

Test and Theory Correlation Study for a Flexible Rotor on Fault-Tolerant Magnetic Bearings

Uhn Joo Na, Research Engineer, Alan B. Palazzolo, Professor, Andrew Provenza
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. July 2002, 124(3): 359–366.
https://doi.org/10.1115/1.1467652
Published Online: June 12, 2002
View Article titled, Test and Theory Correlation Study for a Flexible Rotor on Fault-Tolerant Magnetic Bearings
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Topics: Bearings, Currents, Failure, Magnetic bearings, Magnetic fields, Rotors, Simulation, Machinery
Journal Articles

The Fault-Tolerant Control of Magnetic Bearings With Reduced Controller Outputs

Uhn Joo Na, Research Engineer, Alan Palazzolo, Professor
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Technical Papers
J. Dyn. Sys., Meas., Control. June 2001, 123(2): 219–224.
https://doi.org/10.1115/1.1369356
Published Online: March 24, 2000
View Article titled, The Fault-Tolerant Control of Magnetic Bearings With Reduced Controller Outputs
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Topics: Bearings, Control equipment, Magnetic bearings, Currents, Poles (Building), Control systems, Fault tolerance
Journal Articles

Optimized Realization of Fault-Tolerant Heteropolar Magnetic Bearings

Uhn Joo Na, Research Associate, Alan Palazzolo, Professor
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. July 2000, 122(3): 209–221.
https://doi.org/10.1115/1.1303072
Published Online: January 1, 2000
View Article titled, Optimized Realization of Fault-Tolerant Heteropolar Magnetic Bearings
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Topics: Magnetic bearings, Poles (Building), Bearings, Stiffness, Rotors, Density