Magnetically Suspended Large Momentum Wheel

  title={Magnetically Suspended Large Momentum Wheel},
  author={Ajit V. Sabnis and Joe B. Dendy and Francis J. M. Schmitt},
An 800-ft-lb-sec engineering prototype momentum wheel assembly was designed and fabricated, in which a 64-lb rotor was suspended on radial-passive, axial-active magnetic bearings and rotated at 10,000 rpm. The rationale for the selection of the magnetic bearing configuration, control concepts for the active axis, and the compensation for structural interactions are discussed. Measurements of bearing stiffness and damping, drag torque, and wheel performance are presented. Testing has confirmed… CONTINUE READING