High Temperature, Permanent Magnet Biased, Fault Tolerant, Homopolar Magnetic Bearing Development Conference Paper uri icon


  • This paper summarizes the development of a magnetic bearing designed to operate at 1,000F. A novel feature of this high temperature magnetic bearing is its homopolar construction which incorporates state of the art high temperature, 1,000F, permanent magnets. A second feature is its fault tolerance capability which provides the desired control forces with over one-half of the coils failed. The construction and design methodology of the bearing is outlined and test results are shown. The agreement between a 3D finite element, magnetic field based prediction for force is shown to be in good agreement with predictions at room and high temperature. A 5 axis test rig will be complete soon to provide a means to test the magnetic bearings at high temperature and speed.

name of conference

  • ASME Turbo Expo 2008: Power for Land, Sea, and Air

published proceedings

  • Volume 5: Structures and Dynamics, Parts A and B

author list (cited authors)

  • Palazzolo, A., Tucker, R., Kenny, A., Kang, K., Ghandi, V., Liu, J., Choi, H., & Provenza, A.

citation count

  • 7

complete list of authors

  • Palazzolo, Alan||Tucker, Randall||Kenny, Andrew||Kang, Kyung-Dae||Ghandi, Varun||Liu, Jinfang||Choi, Heeju||Provenza, Andrew

publication date

  • January 2008