Dynamic characteristics of the system supported by two radial magnetic bearings

one axial magnetic bearing and one magnetic damper are studied in this paper.Compared with the system without magnetic damper

supporting damping of the system increases obviously and the vibration of the system can be reduced effectively

especially when it operates on the first two bending critical speeds.This helps the system to get across the first two bending critical speeds safely and operate on16 000 rotations per minute.