Theoretical Investigation on Dynamic Behavior of AMB-Rotor System subject to Base Motion Disturbances

A theoretical investigation on the dynamic behavior of an AMB-rotor system subject to base motion disturbances was carried out in the present paper. The rotor responses of the AMB-rotor system under the rigid and flexible base supporting conditions were compared, which will provide theoretical basis on the base disturbance rejection performance research of AMB-rotor systems. The results show that under the rigid base supporting condition, the capacity of the AMB’s controller to suppress the base disturbances is very limited. In order to attenuate the disturbance responses, a flexible base with specified mass and stiffness should be adopted in the AMB-rotor system.