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Proceedings Papers

Modeling and Analysis of Multiple Electrostatic Actuators on the Response of Vibrotactile Haptic Device

Santosh Mohan Rajkumar, Kumar Vikram Singh, Jeong-Hoi Koo
Proc. ASME. IMECE2022, Volume 1: Acoustics, Vibration, and Phononics, V001T01A004, October 30–November 3, 2022
Paper No: IMECE2022-96616
DOI: https://doi.org/10.1115/IMECE2022-96616
View Paper titled, Modeling and Analysis of Multiple Electrostatic Actuators on the Response of Vibrotactile Haptic Device
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Topics: Actuators, Electrostatic actuators, Excitation, Feedback, Haptics, Modeling, Simulation
Proceedings Papers

Simulating Age Related Radial Pulses Using Magneto-Rheological Fluids

Miranda Eaton, Jeong-Hoi Koo, Tae-Heon Yang, Young-Min Kim
Proc. ASME. SMASIS2022, ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T03A007, September 12–14, 2022
Paper No: SMASIS2022-90793
DOI: https://doi.org/10.1115/SMASIS2022-90793
View Paper titled, Simulating Age Related Radial Pulses Using Magneto-Rheological Fluids
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Topics: Fluids, Rheology
Proceedings Papers

Dynamic Analysis of Semi-Active Tuned Vibration Absorbers Using Closed-Form Equivalent Models

Jeong-Hoi Koo, Mehdi Ahmadian
Proc. ASME. IMECE2001, Vibration and Control of Mechanical Systems, 31-37, November 11–16, 2001
Paper No: IMECE2001/DE-23204
DOI: https://doi.org/10.1115/IMECE2001/DE-23204
View Paper titled, Dynamic Analysis of Semi-Active Tuned Vibration Absorbers Using Closed-Form Equivalent Models
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Topics: Dynamic analysis, Vibration absorbers, Damping, Dampers, Resonance, Vibration, Rheology
Proceedings Papers

Investigation of Variable Stiffness Effects on Radial Pulse Measurements Using Magneto-Rheological Elastomers

Kyle Weaver, Dylan Shumway, Tae-Heon Yang, Young-Min Kim, Jeong-Hoi Koo
Proc. ASME. SMASIS2019, ASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T03A012, September 9–11, 2019
Paper No: SMASIS2019-5708
DOI: https://doi.org/10.1115/SMASIS2019-5708
View Paper titled, Investigation of Variable Stiffness Effects on Radial Pulse Measurements Using Magneto-Rheological Elastomers
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Topics: Elastomers, Rheology, Stiffness, Skin, Pressure, Biomedicine, Blood, Cardiovascular system, Health care, Magnetic fields
Proceedings Papers

Multiphysics Modeling and Parametric Analysis of an Inductor for Heating Thin Sheet Materials

Alex J. Mazursky, Hee-Chang Park, Sung-Hyuk Song, Jeong-Hoi Koo
Proc. ASME. IMECE2018, Volume 2: Advanced Manufacturing, V002T02A051, November 9–15, 2018
Paper No: IMECE2018-88676
DOI: https://doi.org/10.1115/IMECE2018-88676
View Paper titled, Multiphysics Modeling and Parametric Analysis of an Inductor for Heating Thin Sheet Materials
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Topics: Heating, Inductors, Modeling, Sheet materials, Electromagnetic induction, Design, Geometry, Heat, Engineering prototypes, Excitation
Proceedings Papers

Capturing Age-Dependent Properties of Human Skin Using Magnetorheological Elastomers

Kyle Weaver, Jeong-Hoi Koo, Tae-Heon Yang, Young-Min Kim
Proc. ASME. SMASIS2018, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation, V001T03A008, September 10–12, 2018
Paper No: SMASIS2018-8015
DOI: https://doi.org/10.1115/SMASIS2018-8015
View Paper titled, Capturing Age-Dependent Properties of Human Skin Using Magnetorheological Elastomers
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Topics: Elastomers, Skin, Stiffness, Testing, Magnetic fields, Mechanical properties, Artificial skin, Biomedicine, Fillers (Materials), Iron
Proceedings Papers

The Use of Magneto-Rheological Fluids for Simulating Arterial Pulse Waveforms

Takdanai Tantiyartyanontha, Eric Shin, Jeong-Hoi Koo, Tae-Heon Yang
Proc. ASME. SMASIS2017, Volume 2: Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation; Structural Health Monitoring, V002T03A016, September 18–20, 2017
Paper No: SMASIS2017-3786
DOI: https://doi.org/10.1115/SMASIS2017-3786
View Paper titled, The Use of Magneto-Rheological Fluids for Simulating Arterial Pulse Waveforms
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Topics: Fluids, Rheology, Electromagnets, Flow (Dynamics), Signals, Tubing, Blood, Cycles, Magnetic fields, Medical devices
Proceedings Papers

Investigation of Dynamic Behaviors of Flexible Beam Actuators Based on Magnetic Polymers

Adam Reece, Jeong-Hoi Koo
Proc. ASME. SMASIS2016, Volume 2: Modeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting, V002T03A031, September 28–30, 2016
Paper No: SMASIS2016-9290
DOI: https://doi.org/10.1115/SMASIS2016-9290
View Paper titled, Investigation of Dynamic Behaviors of Flexible Beam Actuators Based on Magnetic Polymers
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Topics: Actuators, Polymers, Magnetic fields, Displacement, Magnetic particles, Electromagnets, Particulate matter, Cantilever beams, Elastomers, Lasers
Proceedings Papers

A Novel Safety Brake System Based on Magneto-Rheological Fluids

Dongwon Yun, Jeong-Hoi Koo, Sunghwi Lee, Byungin Kim
Proc. ASME. SMASIS2015, Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Modeling, Simulation and Control of Adaptive Systems, V001T03A026, September 21–23, 2015
Paper No: SMASIS2015-9053
DOI: https://doi.org/10.1115/SMASIS2015-9053
View Paper titled, A Novel Safety Brake System Based on Magneto-Rheological Fluids
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Topics: Brakes, Fluids, Rheology, Safety, Permanent magnets, Disks, Rotation, Springs, Stators, Torque
Proceedings Papers

Design of a Mouse-Type Combined Haptic Device for Cutaneous, Thermal and Kinaesthetic Sensations

Tae-Heon Yang, Yu-Joon Kim, Yon-Kyu Park, Jeong-Hoi Koo, Sang-Youn Kim
Proc. ASME. SMASIS2014, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring; Keynote Presentation, V001T03A012, September 8–10, 2014
Paper No: SMASIS2014-7476
DOI: https://doi.org/10.1115/SMASIS2014-7476
View Paper titled, Design of a Mouse-Type Combined Haptic Device for Cutaneous, Thermal and Kinaesthetic Sensations
Click here to open pdf in another window PDF for Design of a Mouse-Type Combined Haptic Device for Cutaneous, Thermal and Kinaesthetic Sensations
Topics: Design, Haptics, Vibration, Generators, Actuators, Computers, Cooling, Fluids, Printed circuit boards, Shapes
Proceedings Papers

Design and Evaluation of a Haptic Keypad System for Realistic Touch Interaction

Semin Ryu, Jeong-Hoi Koo, Tae-Heon Yang, Dongbum Pyo, Ki-Uk Kyung, Dong-Soo Kwon
Proc. ASME. SMASIS2014, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring; Keynote Presentation, V001T03A009, September 8–10, 2014
Paper No: SMASIS2014-7461
DOI: https://doi.org/10.1115/SMASIS2014-7461
View Paper titled, Design and Evaluation of a Haptic Keypad System for Realistic Touch Interaction
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Topics: Design, Haptics, Actuators, Engineering prototypes, Rendering, Virtual reality, Computer software, Control equipment, Fluids, Force feedback
Proceedings Papers

Design and Simulation of an MR Fluids-Based Haptic Actuator for Mobile Applications

Semin Ryu, Jeong-Hoi Koo, Tae-Heon Yang, Dongbum Pyo, Ki-Uk Kyung, Dong-Soo Kwon
Proc. ASME. SMASIS2013, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation, V001T03A017, September 16–18, 2013
Paper No: SMASIS2013-3055
DOI: https://doi.org/10.1115/SMASIS2013-3055
View Paper titled, Design and Simulation of an MR Fluids-Based Haptic Actuator for Mobile Applications
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Topics: Actuators, Design, Fluids, Haptics, Simulation, Simulation models, Dimensions, Electrical measurement, Force feedback, Pistons
Proceedings Papers

Research on Time Delay of MR Buffer System Under Impact Load

Jiajia Zheng, Zhaochun Li, Jiong Wang, Jeong Hoi Koo
Proc. ASME. SMASIS2013, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation, V001T03A032, September 16–18, 2013
Paper No: SMASIS2013-3207
DOI: https://doi.org/10.1115/SMASIS2013-3207
View Paper titled, Research on Time Delay of MR Buffer System Under Impact Load
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Topics: Delays, Polishing equipment, Stress, Circuits, Transfer functions, Winding (process)
Proceedings Papers

A Miniature MR Actuator With Impedance Sensing Mechanism for Haptic Applications

Tae-Heon Yang, Jeong-Hoi Koo, Sang-Youn Kim, Dong-Soo Kwon
Proc. ASME. SMASIS2012, Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bio-Inspired Materials and Systems; Energy Harvesting, 421-424, September 19–21, 2012
Paper No: SMASIS2012-8141
DOI: https://doi.org/10.1115/SMASIS2012-8141
View Paper titled, A Miniature MR Actuator With Impedance Sensing Mechanism for Haptic Applications
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Topics: Actuators, Haptics, Engineering prototypes, Fluids, Solenoids
Proceedings Papers

Design and Test of an Adaptive Tuned Vibration Absorber for Reducing Cryogenic Cooler Vibrations

Robert Sinko, Michael Karnes, Jeong-Hoi Koo, Young-Keun Kim, Kyung-Soo Kim
Proc. ASME. SMASIS2011, ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 2, 325-331, September 18–21, 2011
Paper No: SMASIS2011-5138
DOI: https://doi.org/10.1115/SMASIS2011-5138
View Paper titled, Design and Test of an Adaptive Tuned Vibration Absorber for Reducing Cryogenic Cooler Vibrations
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Topics: Design, Vibration, Vibration absorbers, Electromagnets, Stiffness, Testing, Advanced materials, Degrees of freedom, Elastomers, Permanent magnets
Proceedings Papers

Dynamic Analysis of a Smart Base-Isolation System Based on MR Elastomers

Hyung-Jo Jung, Jeong-Su Park, Jeong-Hoi Koo
Proc. ASME. SMASIS2010, ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 2, 413-418, September 28–October 1, 2010
Paper No: SMASIS2010-3764
DOI: https://doi.org/10.1115/SMASIS2010-3764
View Paper titled, Dynamic Analysis of a Smart Base-Isolation System Based on MR Elastomers
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Topics: Dynamic analysis, Elastomers, Excitation, Stiffness, Computer simulation, Earthquakes, Elastic moduli, Engineering systems and industry applications, Magnetic fields, Rheology
Proceedings Papers

Smart Damping System Based on MR Damper and Electromagnetic Induction Device for Suppressing Vibration of Stay Cable

In-Ho Kim, Dong-Doo Jang, Hyung-Jo Jung, Jeong-Hoi Koo
Proc. ASME. SMASIS2009, Volume 1: Active Materials, Mechanics and Behavior; Modeling, Simulation and Control, 595-600, September 21–23, 2009
Paper No: SMASIS2009-1380
DOI: https://doi.org/10.1115/SMASIS2009-1380
View Paper titled, Smart Damping System Based on MR Damper and Electromagnetic Induction Device for Suppressing Vibration of Stay Cable
Click here to open pdf in another window PDF for Smart Damping System Based on MR Damper and Electromagnetic Induction Device for Suppressing Vibration of Stay Cable
Topics: Cables, Dampers, Damping, Electromagnetic induction, Vibration, Passive control, Control systems, Free vibrations, Tension
Proceedings Papers

Dynamic Testing and Modeling of Magneto-Rheological Elastomers

Muhammad Usman, Dong-Doo Jang, In-Ho Kim, Hyung-Jo Jung, Jeong-Hoi Koo
Proc. ASME. SMASIS2009, Volume 1: Active Materials, Mechanics and Behavior; Modeling, Simulation and Control, 495-500, September 21–23, 2009
Paper No: SMASIS2009-1348
DOI: https://doi.org/10.1115/SMASIS2009-1348
View Paper titled, Dynamic Testing and Modeling of Magneto-Rheological Elastomers
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Topics: Dynamic testing (Engineering), Dynamic testing (Materials), Elastomers, Modeling, Rheology, Magnetic fields, Shear (Mechanics), Computer simulation, Dynamic models, Stiffness
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
Article Type: Research Papers
J. Vib. Acoust. August 2009, 131(4): 041006.
DOI: 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

Experimental Dynamic Analysis of Magneto-Rheological Tuned Vibration Absorbers

Jeong-Hoi Koo, Mehdi Ahmadian, Mehdi Setareh, Thomas M. Murray
Proc. ASME. IDETC-CIE2003, Volume 5: 19th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 2077-2083, September 2–6, 2003
Paper No: DETC2003/VIB-48553
DOI: https://doi.org/10.1115/DETC2003/VIB-48553
View Paper titled, Experimental Dynamic Analysis of Magneto-Rheological Tuned Vibration Absorbers
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Topics: Dynamic analysis, Rheology, Vibration absorbers