TY - GEN
T1 - Inertial centering approach for high speed flexible rotor systems, supported by AMBs
AU - Levy, Rami
AU - Arogeti, Shai
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Undesired vibrations due to mechanical imbalance is an inevitable phenomenon related to high speed rotating systems. In the absence of radial asymmetry, the steady state response of the rotor can be represented as a synchronous forward circular whirling motion. In this motion, the mass elements of the rotor do not carry relative accelerations since they all orbit in a circular motion of a constant radius and identical frequency. Therefore, in these steady state conditions, the flexible rotor can be regarded as a rigid rotor. Motivated by this observation, a rigid body analysis is utilized in order to derive a set of constraint relations that are required for inertial centering, namely, for a rotation about the rotor's center of mass and its principal axis. In order to force the existence of the inertial centering constraints, the shaft is supported by a set of active magnetic bearings (AMBs), and a suitable control system is developed. The performances of the developed controller are demonstrated via numerical simulations.
AB - Undesired vibrations due to mechanical imbalance is an inevitable phenomenon related to high speed rotating systems. In the absence of radial asymmetry, the steady state response of the rotor can be represented as a synchronous forward circular whirling motion. In this motion, the mass elements of the rotor do not carry relative accelerations since they all orbit in a circular motion of a constant radius and identical frequency. Therefore, in these steady state conditions, the flexible rotor can be regarded as a rigid rotor. Motivated by this observation, a rigid body analysis is utilized in order to derive a set of constraint relations that are required for inertial centering, namely, for a rotation about the rotor's center of mass and its principal axis. In order to force the existence of the inertial centering constraints, the shaft is supported by a set of active magnetic bearings (AMBs), and a suitable control system is developed. The performances of the developed controller are demonstrated via numerical simulations.
KW - Active Magnetic Bearing
KW - High Speed Flexible Rotor
KW - Inertial Centering
UR - http://www.scopus.com/inward/record.url?scp=84949924566&partnerID=8YFLogxK
U2 - 10.1109/ICARCV.2014.7064320
DO - 10.1109/ICARCV.2014.7064320
M3 - Conference contribution
AN - SCOPUS:84949924566
T3 - 2014 13th International Conference on Control Automation Robotics and Vision, ICARCV 2014
SP - 289
EP - 294
BT - 2014 13th International Conference on Control Automation Robotics and Vision, ICARCV 2014
PB - Institute of Electrical and Electronics Engineers
T2 - 2014 13th International Conference on Control Automation Robotics and Vision, ICARCV 2014
Y2 - 10 December 2014 through 12 December 2014
ER -