TY - GEN
T1 - Proof-of-concept experimental validation of a new active hydrodynamic bearing
AU - Rivenbark, N.
AU - Walsh, C.
AU - De Queiroz, M.
N1 - Publisher Copyright:
© 2015 by ASME.
PY - 2015
Y1 - 2015
N2 - Flow-induced instabilities known as 'whirl' and 'whip' are the main contributors to self-excited vibrations in fluid-film bearings. In this paper, we experimentally evaluate a new active hydrodynamic bearing designed to lessen flow-induced vibrations in rotating machines. The active system consists of a fluid-film bearing with a motor-actuated rotating bushing that serves as the control input. This input is used to adjust the mean flow velocity in the bearing and indirectly control the whirl vibration. A PID-type control law is used to adjust the bushing speed. An experimental test rig that realizes the active bearing concept is introduced. Experimental results are presented comparing the active bearing with PID-type control and open-loop control to the passive bearing operation. The results show that the active bearing with feedback control is effective in eliminating whirl vibrations.
AB - Flow-induced instabilities known as 'whirl' and 'whip' are the main contributors to self-excited vibrations in fluid-film bearings. In this paper, we experimentally evaluate a new active hydrodynamic bearing designed to lessen flow-induced vibrations in rotating machines. The active system consists of a fluid-film bearing with a motor-actuated rotating bushing that serves as the control input. This input is used to adjust the mean flow velocity in the bearing and indirectly control the whirl vibration. A PID-type control law is used to adjust the bushing speed. An experimental test rig that realizes the active bearing concept is introduced. Experimental results are presented comparing the active bearing with PID-type control and open-loop control to the passive bearing operation. The results show that the active bearing with feedback control is effective in eliminating whirl vibrations.
UR - https://www.scopus.com/pages/publications/84973392475
U2 - 10.1115/DSCC2015-9675
DO - 10.1115/DSCC2015-9675
M3 - Conference contribution
AN - SCOPUS:84973392475
T3 - ASME 2015 Dynamic Systems and Control Conference, DSCC 2015
BT - Diagnostics and Detection; Drilling; Dynamics and Control of Wind Energy Systems; Energy Harvesting; Estimation and Identification; Flexible and Smart Structure Control; Fuels Cells/Energy Storage; Human Robot Interaction; HVAC Building Energy Management; Industrial Applications; Intelligent Transportation Systems; Manufacturing; Mechatronics; Modelling and Validation; Motion and Vibration Control Applications
PB - American Society of Mechanical Engineers
T2 - ASME 2015 Dynamic Systems and Control Conference, DSCC 2015
Y2 - 28 October 2015 through 30 October 2015
ER -