COLLOCATED CONTROL OF A ROTOR SUPPORTED BY MAGNETIC BEARINGS

Xavier de Lepine (1) , Thierry Verdot (2) , Yann Meyer (1)

1 LDMS - Laboratoire de Dynamique des Machines et des Structures
2 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)

An original approach of the active vibration control of rotor systems supported by Active Magnetic Bearing (AMB) is introduced. This control is intended to stabilize flexible rotor with strong gyroscopic effect without a model of the structure. The magnetic bearing is used alternatively as a sensor and an actuator. So, a pair of AMB corresponds to a sensor and an actuator ideally collocated. In literature, it is proven that this configuration guarantees the asymptotic stability of the closed-loop system. Therefore, the model of the rotor is not necessary to tune the controller. The numerical results are indicating high possibility of reducing the vibrations of the rotating machines supported by magnetic bearings without instabilities.

Domaines: Sciences de l'ingénieur [physics]

Xavier de Lepine, Thierry Verdot, Yann Meyer. COLLOCATED CONTROL OF A ROTOR SUPPORTED BY MAGNETIC BEARINGS. Cansmart 2006 - International Workshop on Smart Materials and Structures, Oct 2006, Toronto, Canada. ⟨hal-03357000⟩