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Nonlinear Interaction in MHD Bearings under Oscillating Electric Fields

  • Bernhard Schweizer
  • Jörg Wauer
Conference paper
  • 1.2k Downloads
Part of the Solid Mechanics and its Applications book series (SMIA, volume 122)

Abstract

Nonlinear oscillations in connection with magnetohydrodynamic journal and slider bearings are discussed. It is assumed that the externally applied magnetic field is constant and uniform, the applied electric field is uniform but harmonically oscillating. Using electrically conducting fluids as lubricant and applying electric and magnetic fields, it is possible to produce pressure even if the shaft does not rotate and the bearing is fixed. The equations of motion for a rigid shaft supported in short MHD journal bearings are derived and solved numerically. By a similar analysis the slider bearing is examined.

Key words

Nonlinear oscillations MHD journal bearings slider bearings electric field 

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References

  1. [1]
    S.J. Dudzinsky, F.J. Young, and W. F. Hughes, “On the load capacity of the MHD journal bearing.” ASME Paper No. 67-Lub-H.Google Scholar
  2. [2]
    W.F. Hughes and F.J. Young, The Electromagnetodynamics of Fluids. Robert E. Krieger Publishing Company, Malabar, Florida, 1989.Google Scholar
  3. [3]
    S. Kamiyama, “Magnetohydrodynamic journal bearing,” ASME Paper No. 68-Lub-6.Google Scholar
  4. [4]
    B. Schweizer, Magnetohydrodynamische Schmierspaltstromung bei unendlich schmaler Lagergeometrie, PhD thesis, Universitit Karlsruhe, 2002.Google Scholar
  5. [5]
    J. Wauer and B. Schweizer, “Analysis of short magnetohydrodynamic journal bearings,” Proceedings Iscorma-1, International Symposium on Stability Control of Rotating Machinery, Lake Tahoe, 2001.Google Scholar
  6. [6]
    A. Cameron, The Principles of Lubrication, London: Longmans Green 1966.Google Scholar
  7. [7]
    F.W. Ocvirk, Short Bearing Approximation for Full Journal Bearings, NACA Technical Note 2808 (1952).Google Scholar

Copyright information

© Springer 2005

Authors and Affiliations

  • Bernhard Schweizer
    • 1
  • Jörg Wauer
    • 1
  1. 1.Institut für Technische MechanikUniversitüt KarlsruheKarlsruheGermany

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