@article{KrausKarevHagedornetal.2022,
  author    = {Zacharias Kraus and Artem Karev and Peter Hagedorn and Fadi Dohnal},
  title     = {Enhancing vibration mitigation in a Jeffcott rotor with active magnetic bearings through parametric excitation},
  series   = {Nonlinear Dynamics},
  volume    = {109},
  issn      = {1573-269X},
  doi       = {10.1007/s11071-022-07572-7},
  pages     = {393 -- 400},
  year      = {2022},
  abstract  = {In previous studies of linear rotary systems with active magnetic bearings, parametric excitation was introduced as an open-loop control strategy. The parametric excitation was realized by a periodic, in-phase variation of the bearing stiffness. At the difference between two of the eigenfrequencies of the system, a stabilizing effect, called anti-resonance, was found numerically and validated in experiments. In this work, preliminary results of further exploration of the parametric excitation are shared. A Jeffcott rotor with two active magnetic bearings and a disk is investigated. Using Floquet theory, a deeper insight into the dynamic behavior of the system is obtained. Aiming at a further increase of stability, a phase difference between excitation terms is introduced.},
  language  = {en}
}