0
RESEARCH PAPERS: Gas Turbines: Structures and Dynamics

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

[+] 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

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.

Copyright © 1995 by The American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In