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This paper presents the 3 coils Active Magnetic Bearing (AMB) applied to the spring and damping forces generation in the flexible rotor mode. A nonlinear model is linearized for the rotor located at the bearing center. A state feedback controller is proposed and a closed loop matrix is given in the final form. Stiffness and damping factors are adjusted for experimental purposes to show effects of the programmable advantages of the AMB. The experimental results illustrate the damped rotor vibrations under an external pulse excitation generated by one of electromagnets.

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Booktitle: Proceedings of ISMB12