Abstract: Active magnetic bearing (AMB) is a kind of the mechanical supporting unit, and its working principle is based on that shafts can be suspended in the case of the bearing depending on electrical magnetic force. When analyzing the dynamical performances of the system, two key domains may be considered during the first research process, these are characteristics of AMB rotor system dynamics and the gyroscopic effect in the system. With the second problem is dealt, and one method for analyzing the effect in design of system is introduced, as well as its specialty. Meanwhile, how to design the system controller is mentioned out here and one kind of realizing scheme for that purpose presented also. As a theoretical analysis result, two rigs of AMB system are experimented and some answers are clear. Above can be used as a base of design of the system.

Key words: AMB system, Dynamical analysis, Gyroscope effect