Dynamic Characteristics of the Magnetic Bearing System with Magnetic Damper

The magnetic damper is introduced into the ordinary magnetic bearing system. Dynamic characteristics of the magnetic bearing system with the magnetic damper are investigated by the theoretical calculation, the experimental modal analysis, and the actual operation of the system, respectively. Compared with the ordinary magnetic bearing system, the modal damps on the 1st and 2nd bending critical speeds have increased a lot, the vibration of the rotor has been reduced, and the system can get across the first two bending critical speeds, and operate on 16,800 rotations per minute safely.