Bm. Antkowiak et Fc. Nelson, ROTODYNAMIC MODELING OF AN ACTIVELY CONTROLLED MAGNETIC BEARING GAS-TURBINE ENGINE, Journal of engineering for gas turbines and power, 120(3), 1998, pp. 621-625
This paper summarizes the development of a finite element rotordynamic
solution used in a closed loop simulation for a magnetic bearing roto
r system in a gas turbine engine. A magnetic bearing controlled rotor
is analyzed, and the state dynamics matrix [A], the shaft control infl
uence matrix [B], and the sensor matrix [C] are constructed. Bode plot
s of the state-space transfer function are also constructed and compar
ed to the results of the rotor dynamic model.