Design and control of a two disks asymmetrical rotor system supported by a suspension with linear electromechanical actuators

This paper describes the problem of design of an experimental setup for rotor dynamic analysis and unbalance control. The rotor system has two disks in an asymmetrical configuration along a steel shaft which is connected to a three phase AC motor by a flexible coupling. A suspension with two linear electromechanical actuators is used to control actively the vibrations caused by unbalance in disks. A LQR scheme with estimated state feedback is developed based on a reduced order finite element model of rotor system. The controller is applied taking into account the actuators dynamics. Some advances in the construction of the prototype and open loop experimental results are presented. The dynamic behavior of the closed loop system are shown by numerical simulations.