• DocumentCode
    1067103
  • Title

    Nonlinear Oscillation of an Elastic Body Supported by High-Tc Superconducting Magnetic Bearings

  • Author

    Iori, Tetsuro ; Ogawa, Shigeyuki ; Sugiura, Toshihiko ; Yoshizawa, Masatsugu

  • Author_Institution
    Keio Univ., Yokohama
  • Volume
    17
  • Issue
    2
  • fYear
    2007
  • fDate
    6/1/2007 12:00:00 AM
  • Firstpage
    2162
  • Lastpage
    2165
  • Abstract
    This research deals with nonlinear dynamics of an elastic bar supported at both its ends by electromagnetic forces from high-Tc superconducting bulks, under vertical excitation. Experimental results show parametric resonance of an asymmetric mode consisting of pitching motion and deflection in a symmetric system. This resonance has nonlinear characteristics such as soft-spring response and hysteresis. It was also confirmed by numerical analysis. Nonlinearity originated in electromagnetic forces caused this resonance.
  • Keywords
    high-temperature superconductors; magnetic bearings; superconducting magnets; elastic bar; elastic body; electromagnetic forces; high-Tc superconducting magnetic bearings; hysteresis; nonlinear oscillation; parametric resonance; pitching motion; soft-spring response; Analytical models; Electromagnetic forces; Frequency; Magnetic levitation; Magnetic resonance; Magnetization; Nonlinear dynamical systems; Nonlinear equations; Numerical analysis; Superconducting magnets; Elastic body; electromagnetic force; magnetic bearing; nonlinear oscillation; parametric resonance;
  • fLanguage
    English
  • Journal_Title
    Applied Superconductivity, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    1051-8223
  • Type

    jour

  • DOI
    10.1109/TASC.2007.899133
  • Filename
    4277465
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1067103