Research Interests:

Current Projects

  • Physics-Based Identification and Management of Aeroelastic Limit-Cycle Oscillation, AFOSR STTR Phase II Project (collaborating with University of Illinois at Urbana-Champaign, NES Tech, and Texas A&M University)
  • Global / Local System Identification of Strongly Nonlinear Dynamical Systems, NSF

Recent Publications

  1. Tsakirtzis, S., Lee, Y.S., Vakakis, A.F., Bergman, L.A., and McFarland, D.M., ‘Modeling of nonlinear modal interactions in the transient dynamics of an elastic rod with an essentially nonlinear attachment,’ Communications in Nonlinear Science and Numerical Simulations, in press.
  2. Lee, Y.S., Vakakis, A.F., McFarland, D.M., and Bergman, L.A., ‘Time-domain nonlinear system identification of the dynamics of aeroelastic instability suppression based on targeted energy transfers,’ The Aeronautical Journal 114 (1151), 2010.
  3. Lee, Y.S., Tsakirtzis, S., Vakakis, A.F., Bergman, L.A., and McFarland, D.M., ‘Physics-based foundation for empirical mode decomposition,’ AIAA Journal 47 (12), 2938-2963, 2009
  4. Lee, Y.S., Nucera, F., Vakakis, A.F., McFarland, D.M., and Bergman, L.A., ‘Periodic orbits and damped transitions of vibro-impact dynamics,’ Physica D 238 (18), 1868-1896, 2009.
  5. Wang, D., Lee, Y.S., McFarland, D.M., Bergman, L.A., and Vakakis, A.F., ‘Mitigating the effect of impact loading on a vehicle using an essentially nonlinear absorber,’ Vehicle System Dynamics, International Journal of Vehicle Mechanics and Mobility 27 (10), 1183–1204, 2009.
  6. Y. S. Lee, A. F. Vakakis, L. A. Bergman, D. M. McFarland, G. Kerschen, Francesco Nucera, S. Tsakirtzis and P. N. Panagopoulos, “Passive Nonlinear Targeted Energy Transfer (TET) and Its Applications to Vibration Absorption: A Review,” Proceedings of the Institution of Mechanical Engineers, Part K, Journal of Multi-Body Dynamics 222 (2), 77-134, 2008.
  7. Y. S. Lee, A. F. Vakakis, L. A. Bergman, D. M. McFarland and G. Kerschen, “Enhancing Robustness of Aeroelastic Instability Suppression Using Multi-Degree-of-Freedom Nonlinear Energy Sinks,” AIAA Journal 46 (6), 1371-1394, 2008.
  8. G. Kerschen, A. F. Vakakis, Y. S. Lee, D. M. McFarland and L. A. Bergman, “Toward a Fundamental Understanding of the Hilbert-Huang Transform in Nonlinear Structural Dynamics,” Journal of Vibration and Control 14 (1-2), 77-105, 2008.