Jeong-Hoi Koo, Ph. D.

Research Highlights

Research Interests

  • Smart Materials
Portrait of Dr. Jeong-Hoi Koo

Associate Professor

56M Garland Hall
513-529-0723
koo@MiamiOH.edu

Degrees

  • Ph.D.—Mechanical Engineering; Virginia Tech—2003.
  • M.S.—Mechanical Engineering, South Dakota State University—1999.
  • B.Eng.—Mechanical Engineering, Chungnam National University, Daejeon, Korea—1998.

Years of Service on this Faculty

  • Associate Professor, 2011–Present
  • Assistant Professor, 2005–2011

Related Experience

  • Visiting Professor – Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, 2007–present (summer months)
  • Visiting Assistant Professor – Rowan University, Glassboro, NJ September 2004–June 2005
  • Research Associate – Advanced Vehicle Dynamics Laboratory, Virginia Tech, August 2003–August 2004
  • Adjunct Faculty – New River Community College, Virginia, September 2003–August 2004

Principal Publications

  • J. H. Koo, A. Dawson, and H. J. Jung, 2012, “Characterization of Actuation Properties of Magneto-Rheological Elastomers with Embedded Hard Magnetic Particles” Journal of Intelligent Material Systems and Structures, Vol. 23, No. 9, pp. 1049-1054.
  • Y. K. Kim, H. I. Bae, J. H. Koo, K.S. Kim, and S.H. Kim, 2012, “Real Time Control of Adaptive Tunable Vibration Absorber Based on Magnetorheological Elastomer for Suppressing Tonal Vibrations,” Review of Scientific Instruments, Vol. 8, No. 4, 046108. doi: 10.1063/1.4704455.
  • T. H. Yang, J.H. Koo, S. Y. Kim, and D. S. Kwon, 2012, “Application of Magneto-Rheological Fluids for a Miniature Haptic Button: Experimental Evaluation,” Journal of Intelligent Material Systems and Structures, Vol 23, No. 9, pp. 1025-1031. doi: 10.1177/1045389X12447983.
  • S. H. Eem, H. J. Jung, and J. H. Koo, 2011, “Application of MR Elastomers for Improving Seismic Protection of Base-Isolated Structures,” IEEE Transactions on Magnetics, Vol. 47, No. 10, pp. 2901-2904.
  • Y. K. Kim, J. H. Koo, K.S. Kim, and S.H. Kim, 2011 “Suppressing Harmonic Vibrations of a Miniature Cryogenic Cooler Using an Adaptive Tunable Vibration Absorber Based on Magneto-Rheological Elastomers,” Review of Scientific Instruments, Vol. 82. Issue 3, 035103.
  • H. J. Jung, D. D. Jang, J. H. Koo, and S. W. Cho, 2010, “Experimental Evaluation of a ‘Self-Sensing’ Capability of an Electromagnetic Induction System Designed for MR Dampers,” Journal of Intelligent Material Systems and Structures, Vo. 21, No. 8, pp. 827-835.
  • J. H. Koo, F. Khan, D. D. Jang and H. J. Jung, 2010, “Dynamic Characterization and Modeling of Magneto-Rheological Elastomers Under Compressive Loadings,” Smart Materials and Structures, Vol. 19, No. 11, 117002.
  • K. J. Kim, C.W. Lee, and J. H. Koo, 2009, “Optimal Positing and Control of a MR-Squeeze Film Damper for Reducing Unbalanced Vibrations in a Rotor System with Multiple Masses,” Journal of Vibration and Acoustics – Transactions of the ASME, Vol. 131, No. 4.
  • K. J. Kim, C.W. Lee, and J. H. Koo, 2008, “Design and Modeling of Semi-active Squeeze Film Dampers using Magneto-Rheological fluids,” Smart Materials and Structures, Vol. 17, No. 3.
  • F. Khan, J. H. Koo, D. Monk, and E. Eisbrenner, 2008, “Characterization of Shear Deformation and Strain Recovery Behavior in Shape Memory Polymers,” Polymer Testing, Vol. 27, No. 4, pp. 498-503.
  • P. Von Lockette, S. Lofland, J. H. Koo, J. Kadlowec, and M. Dermond, 2008, “Dynamic Characterization of Bimodal Particle Mixtures in Silicone Rubber Magentorheological Materials,” Polymer Testing, Vol 27, pp. 931-935.
  • M. Setareh, J.K. Ritchey, T.M. Murray, J. H. Koo, and M. Ahmadian, 2007, “Semiactive Tuned Mass Damper for Floor Vibration Control,” Journal of Structural Engineering-ASCE, 38 (3), pp.242-250.
  • Goncalves, J. H. Koo, and M. Ahmadian, 2006, “A Review of the State of the Art in MR Fluid Technologies – Part I: MR Fluid and MR Fluid Models,” The Shock and Vibration Digest, Vol. 38, No. 3, pp. 203 – 219.
  • J. H. Koo, M. Ahmadian, and M. Setareh, 2006, “Experimental Robustness Analysis of MR Semi-Active Tuned Vibration Absorbers Subject to Mass Off-tuning,” Journal of Vibration and Acoustics – Transactions of the ASME, Vol. 128, pp.126-131.
  • J. H. Koo, F. Goncalves, and M. Ahmadian, 2006, “A Comprehensive Response Time Analysis of Magneto-Rheological Fluid Dampers,” Smart Materials and Structures, 15, pp.351-358.
  • M. Elahinia, J. H. Koo, M. Ahmadian, and C. Woolsey, 2005, “Backstepping Control of an SMA Actuated Robotic Arm,” Journal of Vibration and Control, Vol. 11, No. 3, pp. 407 – 429.

Scientific and Professional Societies

  • ASME
  • ASEE
  • Korean-American Scientists and Engineers Association

Honors and Awards

  • Nominated for SEAS Teaching Excellence Award, 2009, Miami University
  • Best Symposium Organizer, the 15th International Congress on Sound and Vibration, 2008.
  • The Philip and Elaine Hampton Award, 2006 and 2010, Miami University.
  • Torgersen Research Excellence Award, 2004, Virginia Tech.
  • Travel Grant, 2003, ASME Dynamic Systems and Controls Division.
  • Travel Fund Program Grant, 2002, Virginia Tech.
  • Graduate Research Development Project Grant, 2002, Virginia Tech.
  • Korean Scientists and Engineers Association (KSEA) Fellowship, 2002.

Institutional and Professional Service

Miami University (Selected examples)

  • Member of design threads committee, 2005-present
  • Petition committee, AY 2006.
  • Faculty search committee, AY 2006
  • Library liaison, 2007-present
  • Member of computational engineering thread committee, 2007–2008
  • Faculty search committee, AY 2009
  • Offered an international summer program with University of Seoul for SEAS students, Summer 2010
  • Member of SEAS Research Council, 2007–2008
  • FE review sessions (in Dynamics) for CEC students

National

  • Adaptive Systems Dynamics and Controls Technical Committee (TC), secretary, 2012–2013
  • Shock and Vibration (IOS Press), Associate editor, 2012–present
  • ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, symposium organizer, 2009–present
  • Vibration and Control of Smart Materials and Systems at the 15th International Congress on Sound and Vibration (ICSV15), session organizer, July 6-10, 2008, Daejon Korea.
  • Advances in Vehicle Systems Dynamics and Control, International Mechanical Engineering Congress and Exposition (IMECE), session organizer, 2006.
  • Nonlinear Modeling and Control of Smart Materials, International Nonlinear Science and Complexity Conference, session organizer, August 7-12, 2006, Beijing China.
  • Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS), session chair, 2009–present
  • International Conference on Electrorheological Fluids and Magnetorheological Suspensions (ERMR), session chair, 2010 and 2012
  • Smart Structures and Materials (SPIE 2005–2007 and 2013), session chair
  • IMECE (IMECE 2005–2007), session chair
  • Reviewer for Smart Materials and Structures, Journal of Intelligent Material Systems and Structures, Sensors & Actuators, Journal of Vibration and Acoustics, AIAA, Vehicle System Design, IEEE Transactions of Intelligent Transportation Systems, Journal of Vibration Control, Shock and Vibration

Professional Development Activities

  • Lilly Conference on Excellence in College Teaching, 2005–2007
  • CELT new faculty teaching enhancement program, 2005–2006
  • Presidents’ Day Teaching Effectiveness Retreat, 2007
  • Labview mini course, 2008
  • Short course on electroactive polymers, SPIE 2006
  • COMSOL multiphysics mini course, 2007
  • Modal testing mini course, 2009
  • Seminar on “Wellness < Innovation” by John Foster.
  • Completed the CITI (Collaborative Institutional Training Initiative) training for research projects that involve human subjects, 2011