Magnetic Bearings: An Adaptive Solution to Motion-Control Problems

摘要

High-precision rotating machinery often employs sophisticated motion-control systems. Typical of such systems are magnetic bearings. In this paper, the operational principles of feedback systems for magnetically suspended rotors are explored, with special emphasis on the rotor position sensors, servo circuits, and sources of magnetomotive force. Several applications for these systems are identified, and some important design characteristics in magnetic bearing technology are reviewed. The role played by Martin Marietta Energy Systems, Inc., and the University of Virginia in research and development of new suspension/bearing technologies is discussed, and their most recent contributions to this field are presented. 25 refs., 13 figs. (ERA citation 11:032421)