Dynamics of a Rotor - Magnetic Bearing System Equipped with a Thrust Magnetic Bearing
This paper is concerned with the dynamics of a rigid rotor supported by journal and thrust active magnetic bearings. For small perturbation, the action of the thrust bearing can be described by a series of stiffness coefficients. The system equations are formulated by combining the equations of motion of the rotor and the equations of the decentralized PID controllers. The eigenvalues of system are calculated and examined. The results indicate that the thrust magnetic bearing has great influence on the eigenvalues corresponding to lowfrequency conical whirls, and causes the system stability to degrade.
Author: Yick Sing Ho and Peilin Jiang and Lie Yu | Published: 2000
Booktitle: Proceedings of ISMB7
Booktitle: Proceedings of ISMB7