Active Vibration Control of Rotating Machinery With a Hybrid Piezohydraulic Actuator System

P. Tang; A. B. Palazzolo; A. F. Kascak; G. T. Montague

doi:10.1115/1.2815463

Journal of Engineering for Gas Turbines and Power | Volume 117 | Issue 4 | Research Paper

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RESEARCH PAPERS: Gas Turbines: Structures and Dynamics

Active Vibration Control of Rotating Machinery With a Hybrid Piezohydraulic Actuator System

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

[+] Author and Article Information

P. Tang, A. B. Palazzolo

Texas A&M University, College Station, TX 77843

A. F. Kascak, G. T. Montague

NASA Lewis Research Center, Cleveland, OH 44135

J. Eng. Gas Turbines Power 117(4), 767-776 (Oct 01, 1995) (10 pages) doi:10.1115/1.2815463 History: Received February 04, 1994; Online November 19, 2007

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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 −40°F and 400°F. 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.

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Tang PP, Palazzolo AB, Kascak AF, Montague GT. Active Vibration Control of Rotating Machinery With a Hybrid Piezohydraulic Actuator System. ASME. J. Eng. Gas Turbines Power. 1995;117(4):767-776. doi:10.1115/1.2815463.

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Active Vibration Control of Rotating Machinery With a Hybrid Piezohydraulic Actuator System

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