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Proceedings Papers

Complex Modal Testing Methods for Rotating Machinery

Chong-Won Lee, Young-Don Joh
Proc. ASME. DETC91, 13th Biennial Conference on Mechanical Vibration and Noise: Modal Analysis, Modeling, Diagnostics, and Control — Analytical and Experimental, 39-45, September 22–25, 1991
Publisher: American Society of Mechanical Engineers
Paper No: DETC1991-0358
https://doi.org/10.1115/DETC1991-0358
View Paper titled, Complex Modal Testing Methods for Rotating Machinery
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Topics: Machinery, Testing, Frequency response, Excitation, Signals
Proceedings Papers

Dynamic Analysis of Flexible Rotors Subjected to Torque and Force

Jong-Seop Yun, Chong-Won Lee
Proc. ASME. DETC93, 14th Biennial Conference on Mechanical Vibration and Noise: Vibration of Rotating Systems, 331-338, September 19–22, 1993
Publisher: American Society of Mechanical Engineers
Paper No: DETC1993-0209
https://doi.org/10.1115/DETC1993-0209
View Paper titled, Dynamic Analysis of Flexible Rotors Subjected to Torque and Force
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Topics: Dynamic analysis, Rotors, Torque, Stability, Numerical analysis, Stress, Variational principles
Proceedings Papers

Isotropic Control of Rotor Bearing System

Cheol-Soon Kim, Chong-Won Lee
Proc. ASME. DETC93, 14th Biennial Conference on Mechanical Vibration and Noise: Vibration of Rotating Systems, 325-329, September 19–22, 1993
Publisher: American Society of Mechanical Engineers
Paper No: DETC1993-0208
https://doi.org/10.1115/DETC1993-0208
View Paper titled, Isotropic Control of Rotor Bearing System
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Topics: Bearings, Rotors, Anisotropy, Magnetic bearings, Transients (Dynamics)
Proceedings Papers

Modal Testing and Parameter Identification of Active Magnetic Bearing System

Chong-Won Lee, Young-Ho Ha, Cheol-Soon Kim, Chee-Young Joh
Proc. ASME. DETC95, Volume 3B: 15th Biennial Conference on Mechanical Vibration and Noise — Acoustics, Vibrations, and Rotating Machines, 1073-1080, September 17–20, 1995
Publisher: American Society of Mechanical Engineers
Paper No: DETC1995-0502
https://doi.org/10.1115/DETC1995-0502
View Paper titled, Modal Testing and Parameter Identification of Active Magnetic Bearing System
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Topics: Magnetic bearings, Testing, Bearings, Excitation systems, Frequency response
Proceedings Papers

Use of Directional AR and ML Spectra for Detection of Misfired Engine Cylinder

Chong-Won Lee, Yun-Sik Han, Jong-Po Park
Proc. ASME. DETC95, Volume 3A: 15th Biennial Conference on Mechanical Vibration and Noise — Vibration of Nonlinear, Random, and Time-Varying Systems, 1397-1403, September 17–20, 1995
Publisher: American Society of Mechanical Engineers
Paper No: DETC1995-0387
https://doi.org/10.1115/DETC1995-0387
View Paper titled, Use of Directional AR and ML Spectra for Detection of Misfired Engine Cylinder
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Topics: Engine cylinders, Spectra (Spectroscopy), Cylinders, Artificial neural networks, Automotive engines, Engines, Pattern recognition, Signals, Vibration
Proceedings Papers

Unidirectional Excitation Technique for Complex Modal Testing of Asymmetric Rotor Systems: Application to DTG

Seok-Ku Lee, Chong-Won Lee
Proc. ASME. DETC97, Volume 1D: 16th Biennial Conference on Mechanical Vibration and Noise, V01DT24A002, September 14–17, 1997
Publisher: American Society of Mechanical Engineers
Paper No: DETC97/VIB-4045
https://doi.org/10.1115/DETC97/VIB-4045
View Paper titled, Unidirectional Excitation Technique for Complex Modal Testing of Asymmetric Rotor Systems: Application to DTG
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Topics: Excitation, Rotors, Testing
Proceedings Papers

Prediction of Coupled Vibrations in Hard Disk Drive Spindle Systems

Chong-Won Lee, Huan-Suo Jia, Jeong-Hwan Seo, Cheol-Soon Kim, Sang-Bok Chun
Proc. ASME. DETC97, Volume 1D: 16th Biennial Conference on Mechanical Vibration and Noise, V01DT25A001, September 14–17, 1997
Publisher: American Society of Mechanical Engineers
Paper No: DETC97/VIB-4181
https://doi.org/10.1115/DETC97/VIB-4181
View Paper titled, Prediction of Coupled Vibrations in Hard Disk Drive Spindle Systems
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Topics: Bearings, Disks, Stiffness, Vibration
Proceedings Papers

Mode Identification for Rotating Rigid Shaft With Flexible Disks by Mode Splits

Chong-Won Lee, Jong-Seok Ham
Proc. ASME. DETC99, Volume 7A: 17th Biennial Conference on Mechanical Vibration and Noise, 1179-1189, September 12–16, 1999
Publisher: American Society of Mechanical Engineers
Paper No: DETC99/VIB-8266
https://doi.org/10.1115/DETC99/VIB-8266
View Paper titled, Mode Identification for Rotating Rigid Shaft With Flexible Disks by Mode Splits
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Topics: Disks
Proceedings Papers

Identification of Rotating Asymmetry in Rotating Machines by Using Reverse dFRF

Chong-Won Lee, Kye-Si Kwon
Proc. ASME. DETC99, Volume 7A: 17th Biennial Conference on Mechanical Vibration and Noise, 1191-1199, September 12–16, 1999
Publisher: American Society of Mechanical Engineers
Paper No: DETC99/VIB-8267
https://doi.org/10.1115/DETC99/VIB-8267
View Paper titled, Identification of Rotating Asymmetry in Rotating Machines by Using Reverse dFRF
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Topics: Excitation, Excitation systems, Frequency response, Machinery, Rotors, Sensors, Testing, Vibration
Proceedings Papers

Radial Direction Position Control of a Disk Type Integrated Motor-Bearing System

Woo-Sup Han, Chong-Won Lee, Sung-Ho Park, Yohji Okada
Proc. ASME. IDETC-CIE2001, Volume 6B: 18th Biennial Conference on Mechanical Vibration and Noise, 1459-1466, September 9–12, 2001
Publisher: American Society of Mechanical Engineers
Paper No: DETC2001/VIB-21473
https://doi.org/10.1115/DETC2001/VIB-21473
View Paper titled, Radial Direction Position Control of a Disk Type Integrated Motor-Bearing System
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Topics: Bearings, Disks, Engines, Motors, Position control
Journal Articles

Enhanced Campbell Diagram With the Concept of H ∞ in Rotating Machinery: Lee Diagram

Chong-Won Lee, Yun-Ho Seo
Journal: Journal of Applied Mechanics
Publisher: ASME
Article Type: Research Papers
J. Appl. Mech. March 2010, 77(2): 021012.
https://doi.org/10.1115/1.3173610
Published Online: December 14, 2009
View Article titled, Enhanced Campbell Diagram With the Concept of H ∞ in Rotating Machinery: Lee Diagram
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Topics: Anisotropy, Modal analysis, Rotors, Machinery, Generators
Proceedings Papers

A New Frequency-Speed Diagram Weighted With Strength of Modes in Rotating Machinery

Yun-Ho Seo, Chong-Won Lee
Proc. ASME. GT2008, Volume 5: Structures and Dynamics, Parts A and B, 1159-1165, June 9–13, 2008
Publisher: American Society of Mechanical Engineers
Paper No: GT2008-50855
https://doi.org/10.1115/GT2008-50855
View Paper titled, A New Frequency-Speed Diagram Weighted With Strength of Modes in Rotating Machinery
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Topics: Anisotropy, Design, Excitation, Frequency response, Generators, Machinery, Manufacturing, Rotors
Journal Articles

Optimal Positioning and Control of a MR-Squeeze Film Damper for Reducing Unbalanced Vibrations in a Rotor System With Multiple Masses

Keun-Joo Kim, Chong-Won Lee, Jeong-Hoi Koo
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. August 2009, 131(4): 041006.
https://doi.org/10.1115/1.3142887
Published Online: June 5, 2009
View Article titled, Optimal Positioning and Control of a MR-Squeeze Film Damper for Reducing Unbalanced Vibrations in a Rotor System With Multiple Masses
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Topics: Dampers, Rotors, Vibration, Disks, Bearings
Proceedings Papers

Design of an Active Control Engine Mount Using a Direct Drive Electrodynamic Actuator

Hyunki Park, Bo-Ha Lee, Chong-Won Lee
Proc. ASME. IDETC-CIE2007, Volume 1: 21st Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 103-108, September 4–7, 2007
Publisher: American Society of Mechanical Engineers
Paper No: DETC2007-34619
https://doi.org/10.1115/DETC2007-34619
View Paper titled, Design of an Active Control Engine Mount Using a Direct Drive Electrodynamic Actuator
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Topics: Actuators, Design, Engines, Engineering prototypes, Algorithms, Feedback, Feedforward control, Hydraulic engine mounts, Machinery, Modeling
Proceedings Papers

Control of a Three-Pole Hybrid Active Magnetic Bearing With Three Hall Diodes

Sang-Hyun Park, Chong-Won Lee
Proc. ASME. GT2007, Volume 5: Turbo Expo 2007, 1017-1021, May 14–17, 2007
Publisher: American Society of Mechanical Engineers
Paper No: GT2007-28178
https://doi.org/10.1115/GT2007-28178
View Paper titled, Control of a Three-Pole Hybrid Active Magnetic Bearing With Three Hall Diodes
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Topics: Magnetic bearings, Poles (Building), Control equipment, Design, Rotors, Modeling, Permanent magnets, Sensors, Steady state, Transients (Dynamics)
Journal Articles

Crack Identification in a Rotating Shaft via the Reverse Directional Frequency Response Functions

Yun-Ho Seo, Chong-Won Lee, K. C. Park
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. February 2009, 131(1): 011012.
https://doi.org/10.1115/1.2981168
Published Online: January 8, 2009
View Article titled, Crack Identification in a Rotating Shaft via the Reverse Directional Frequency Response Functions
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Topics: Fracture (Materials), Frequency response, Rotors, Sensors, Noise (Sound)
Proceedings Papers

Design and Control of Active Magnetic Bearing System With Lorentz Force Type Axial Actuator

Ha-Yong Kim, Chong-Won Lee
Proc. ASME. IDETC-CIE2003, Volume 5: 19th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 1973-1978, September 2–6, 2003
Publisher: American Society of Mechanical Engineers
Paper No: DETC2003/VIB-48542
https://doi.org/10.1115/DETC2003/VIB-48542
View Paper titled, Design and Control of Active Magnetic Bearing System With Lorentz Force Type Axial Actuator
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Topics: Actuators, Design, Magnetic bearings, Permanent magnets
Proceedings Papers

Nonlinear Vibration of Sheet Metal Plates Under Interacting Parametric and External Excitation During Manufacturing

Chung Hwan Kim, Chong-Won Lee, N. C. Perkins
Proc. ASME. IDETC-CIE2003, Volume 5: 19th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 2481-2489, September 2–6, 2003
Publisher: American Society of Mechanical Engineers
Paper No: DETC2003/VIB-48601
https://doi.org/10.1115/DETC2003/VIB-48601
View Paper titled, Nonlinear Vibration of Sheet Metal Plates Under Interacting Parametric and External Excitation During Manufacturing
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Topics: Excitation, Manufacturing, Nonlinear vibration, Plates (structures), Sheet metal
Proceedings Papers

Stabilization of Active Magnetic Bearing System Subject to Base Motion

Hyun-Sik Kim, Ha-Yong Kim, Chong-Won Lee, Tae-Ha Kang
Proc. ASME. IDETC-CIE2003, Volume 5: 19th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 2007-2013, September 2–6, 2003
Publisher: American Society of Mechanical Engineers
Paper No: DETC2003/VIB-48546
https://doi.org/10.1115/DETC2003/VIB-48546
View Paper titled, Stabilization of Active Magnetic Bearing System Subject to Base Motion
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Topics: Algorithms, Control equipment, Feedforward control, Magnetic bearings
Proceedings Papers

Experimental Compensation of Runout and High Order Harmonic Effects in Lorentz Force Type Integrated Motor-Bearing System

Sung-Ho Park, Chong-Won Lee
Proc. ASME. IDETC-CIE2005, Volume 1: 20th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 1221-1230, September 24–28, 2005
Publisher: American Society of Mechanical Engineers
Paper No: DETC2005-85483
https://doi.org/10.1115/DETC2005-85483
View Paper titled, Experimental Compensation of Runout and High Order Harmonic Effects in Lorentz Force Type Integrated Motor-Bearing System
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Topics: Bearings, Engines, Motors, Torque, Rotors, Control equipment, Disks, Electric motors, Errors, Excitation