Active vibration control of rotating machinery with a hybrid piezohydraulic actuator system Academic Article uri icon

abstract

  • An integrated, compact piezohydraulic actuator system for active vibration control was designed and developed with a primary application for gas turbine aircraft engines. Copper tube was chosen as the transmission line material for ease of assembly. Liquid plastic, which meets incompressibility and low-viscosity requirements, was adjusted to provide optimal actuator performance. Variants of the liquid plastic have been prepared with desired properties between 40F and 400F. The effectiveness of this hybrid actuator for active vibration control (AVC) was demonstrated for suppressing critical speed vibration through two critical speeds for various levels of intentionally placed imbalance. A high-accuracy closed-loop simulation, which combines both finite element and state space methods, was applied for the closed-loop unbalance response simulation with/without AVC. Good correlation between the simulation and test results was achieved.

published proceedings

  • JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME

author list (cited authors)

  • Tang, P., Palazzolo, A. B., Kascak, A. F., & Montague, G. T.

citation count

  • 5

complete list of authors

  • Tang, P||Palazzolo, AB||Kascak, AF||Montague, GT

publication date

  • October 1995