Electric-hydraulic actuator design for a hybrid squeeze-film damper-mounted rigid rotor system with active control

Her Terng Yau, Chieh-Li Chen

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

When a squeeze-film damper-mounted rigid rotor system is operated eccentrically, the nonlinear forces are no longer radially symmetric and a disordered dynamical behavior (i.e., quasi-periodic and chaotic vibration) will occur. To suppress the undesired vibration characteristics, the hybrid squeeze-film damper bearing consisting of hydrostatic chambers and hydrodynamic ranges is proposed. In order to change the pressure in hydrostatic chambers, two pairs of electric-hydraulic orifices are used in this paper The dynamic model of the system is established with the consideration of the electric-hydraulic actuator. The complex nonsynchronous vibration of squeeze-film dampers rotor-bearing system is demonstrated to be stabilized by such electric-hydraulic orifices actuators with proportional-plus-derivative (PD) controllers. Numerical results show that the nonchaotic operation range of the system will be increased by tuning the control loop gain.

Original languageEnglish
Pages (from-to)176-183
Number of pages8
JournalJournal of Vibration and Acoustics, Transactions of the ASME
Volume128
Issue number2
DOIs
Publication statusPublished - 2006 Apr 1

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics
  • Mechanics of Materials
  • Mechanical Engineering

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