TY - GEN
T1 - A new active hydrodynamic bearing for controlling flow-induced instability
AU - Gao, F.
AU - De Queiroz, M. S.
AU - Cai, Z.
N1 - Publisher Copyright:
Copyright © 2007 by ASME.
PY - 2007
Y1 - 2007
N2 - Fluid-film bearings can suffer from flow-induced instabilities known as 'whirl' and 'whip'. This phenomenon can lead to large rotor vibration and eventually result in rotor-bearing failure. In this paper, we introduce a new active hydrodynamic bearing to mitigate such instabilities. The system contains a rotating bushing, actuated by a motor, that serves as the control input. This input is used to control the mean flow velocity in the bearing and thereby the journal vibration. A simple feedback control law is proposed for the bushing velocity, and numerical simulations are presented to evaluate the active bearing.
AB - Fluid-film bearings can suffer from flow-induced instabilities known as 'whirl' and 'whip'. This phenomenon can lead to large rotor vibration and eventually result in rotor-bearing failure. In this paper, we introduce a new active hydrodynamic bearing to mitigate such instabilities. The system contains a rotating bushing, actuated by a motor, that serves as the control input. This input is used to control the mean flow velocity in the bearing and thereby the journal vibration. A simple feedback control law is proposed for the bushing velocity, and numerical simulations are presented to evaluate the active bearing.
UR - https://www.scopus.com/pages/publications/44349115525
U2 - 10.1115/IMECE2007-43048
DO - 10.1115/IMECE2007-43048
M3 - Conference contribution
AN - SCOPUS:44349115525
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 133
EP - 140
BT - Mechanical Systems and Control
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007
Y2 - 11 November 2007 through 15 November 2007
ER -