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Proceedings Papers

Model Identification of a Rotor With Magnetic Bearings

José A. Vázquez, Eric H. Maslen, Hyeong-Joon Ahn, Dong-Chul Han
Proc. ASME. GT2001, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T03A059, June 4–7, 2001
Publisher: American Society of Mechanical Engineers
Paper No: 2001-GT-0566
https://doi.org/10.1115/2001-GT-0566
View Paper titled, Model Identification of a Rotor With Magnetic Bearings
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Topics: Magnetic bearings, Rotors, Wire, Errors, Frequency response, Sensors, Stiffness
Proceedings Papers

Active Control of Quazi-Zero Stiffness Isolators

Hyeong-Joon Ahn, Kyoung-Rock Kim
Proc. ASME. DSCC2011, ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, Volume 2, 197-200, October 31–November 2, 2011
Publisher: American Society of Mechanical Engineers
Paper No: DSCC2011-6155
https://doi.org/10.1115/DSCC2011-6155
View Paper titled, Active Control of Quazi-Zero Stiffness Isolators
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Topics: Stiffness, Vibration isolators, Engineering simulation, Polynomials, Simulation, Vibration
Proceedings Papers

A Unified Model for Quasi-Zero-Stiffness Passive Vibration Isolators With Symmetric Nonlinearity

Hyeong-Joon Ahn
Proc. ASME. IDETC-CIE2010, Volume 5: 22nd International Conference on Design Theory and Methodology; Special Conference on Mechanical Vibration and Noise, 689-693, August 15–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: DETC2010-28604
https://doi.org/10.1115/DETC2010-28604
View Paper titled, A Unified Model for Quasi-Zero-Stiffness Passive Vibration Isolators With Symmetric Nonlinearity
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Topics: Stiffness, Vibration isolators, Design methodology, Polynomials, Vibration
Proceedings Papers

Torsional Rigidity of a Cycloid Drive Considering Finite Bearing and Hertz Contact Stiffness

Kyoung-hong Kim, Chun-se Lee, Hyeong-Joon Ahn
Proc. ASME. IDETC-CIE2009, Volume 6: ASME Power Transmission and Gearing Conference; 3rd International Conference on Micro- and Nanosystems; 11th International Conference on Advanced Vehicle and Tire Technologies, 125-130, August 30–September 2, 2009
Publisher: American Society of Mechanical Engineers
Paper No: DETC2009-87092
https://doi.org/10.1115/DETC2009-87092
View Paper titled, Torsional Rigidity of a Cycloid Drive Considering Finite Bearing and Hertz Contact Stiffness
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Topics: Bearings, Stiffness, Disks, Finite element analysis, Pressure, Rollers, Rotation, Springs
Proceedings Papers

Incorporating Data Uncertainty in Rotordynamic Model Reconciliation

Qingyu Wang, Eric H. Maslen, Hyeong-Joon Ahn
Proc. ASME. GT2003, Volume 4: Turbo Expo 2003, 527-534, June 16–19, 2003
Publisher: American Society of Mechanical Engineers
Paper No: GT2003-38595
https://doi.org/10.1115/GT2003-38595
View Paper titled, Incorporating Data Uncertainty in Rotordynamic Model Reconciliation
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Topics: Uncertainty, Errors, Dynamic systems, Dynamics (Mechanics), Engineering models, Robust control
Proceedings Papers

Feasibility Analysis for the Rotordynamic Performance of API617

Hyeong-Joon Ahn, Eric H. Maslen, Tetsuya Iwasaki
Proc. ASME. GT2003, Volume 4: Turbo Expo 2003, 535-542, June 16–19, 2003
Publisher: American Society of Mechanical Engineers
Paper No: GT2003-38596
https://doi.org/10.1115/GT2003-38596
View Paper titled, Feasibility Analysis for the Rotordynamic Performance of API617
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Topics: American Petroleum Institute, Bearings, Damping, Design, Dynamics (Mechanics), Fluid films, Machinery, Magnetic bearings, Rolling bearings, Rotors
Proceedings Papers

Frequency Domains Identification of a MIMO AMB Rigid Rotor System Based on Measured Open-Loop Frequency Responses

Hyeong-Joon Ahn, Dong-Chul Han, Eric H. Maslen
Proc. ASME. GT2003, Volume 4: Turbo Expo 2003, 543-550, June 16–19, 2003
Publisher: American Society of Mechanical Engineers
Paper No: GT2003-38597
https://doi.org/10.1115/GT2003-38597
View Paper titled, Frequency Domains Identification of a MIMO AMB Rigid Rotor System Based on Measured Open-Loop Frequency Responses
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Topics: Frequency response, Rotors, Dynamics (Mechanics), Control equipment, Sensors, Delays, Magnetic bearings, Poles (Building)
Journal Articles

Feasibility Analysis for the Rotordynamic Performance of API617

Hyeong-Joon Ahn, Eric H. Maslen, Tetsuya Iwasaki
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Technical Papers
J. Eng. Gas Turbines Power. April 2005, 127(2): 418–424.
https://doi.org/10.1115/1.1789492
Published Online: April 15, 2005
View Article titled, Feasibility Analysis for the Rotordynamic Performance of API617
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Topics: American Petroleum Institute, Bearings, Damping, Rotors, Separation (Technology), Stability, Machinery, Magnetic bearings, Transfer functions, Rolling bearings
Journal Articles

Error Analysis of the Cylindrical Capacitive Sensor for Active Magnetic Bearing Spindles

Hyeong-Joon Ahn, Graduate Student, Soo Jeon, Graduate Student, Dong-Chul Han, Professor
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Technical Papers
J. Dyn. Sys., Meas., Control. March 2000, 122(1): 102–107.
https://doi.org/10.1115/1.482433
Published Online: January 6, 1999
View Article titled, Error Analysis of the Cylindrical Capacitive Sensor for Active Magnetic Bearing Spindles
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Topics: Errors, Rotors, Sensors, Carbon capture and storage