Title :
Finite element modeling and unbalance compensation for a two disks asymmetrical rotor system
Author :
Arias-Montiel, M. ; Silva-Navarro, G.
Author_Institution :
Dept. of Electr. Eng., CINVESTAV-IPN, Mexico City
Abstract :
In this work a LQR scheme for vibration control in a rotor system is presented. The rotor system has two disks in an asymmetrical configuration along the shaft and its model is obtained by applying finite element techniques. A reduced order model of seven degrees of freedom is experimentally validated for the synthesis of active LQR control laws, using both an output feedback (one disk displacement) and an estimated state feedback controller. The controller is tuned to reduce the vibrations caused by the rotor imbalance in the two disks using only an actuator (active magnetic bearing). Some simulation and experimental results are included to show the transient and steady-state behavior of the overall closed loop system.
Keywords :
closed loop systems; compensation; finite element analysis; magnetic bearings; rotors; vibration control; LQR scheme; active LQR control laws; active magnetic bearing; closed loop system; finite element modeling; state feedback controller; two disks asymmetrical rotor; unbalance compensation; vibration control; Actuators; Control system synthesis; Displacement control; Finite element methods; Output feedback; Reduced order systems; Shafts; State estimation; State feedback; Vibration control; Active vibration control; Finite element model; Magnetic bearing; Rotor system;
Conference_Titel :
Electrical Engineering, Computing Science and Automatic Control, 2008. CCE 2008. 5th International Conference on
Conference_Location :
Mexico City
Print_ISBN :
978-1-4244-2498-6
Electronic_ISBN :
978-1-4244-2499-3
DOI :
10.1109/ICEEE.2008.4723461
