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RESEARCH PAPERS

Hybrid Active Vibration Control of Rotorbearing Systems Using Piezoelectric Actuators

[+] Author and Article Information
A. B. Palazzolo, S. Jagannathan

Texas A&M University, College Station, TX

A. F. Kascak

U.S. Army at NASA Lewis

G. T. Montague

Sverdrup at NASA Lewis

L. J. Kiraly

NASA Lewis

J. Vib. Acoust 115(1), 111-119 (Jan 01, 1993) (9 pages) doi:10.1115/1.2930303 History: Received October 01, 1991; Online June 17, 2008

Abstract

The vibrations of a flexible rotor are controlled using piezoelectric actuators. The controller includes active analog components and a hybrid interface with a digital computer. The computer utilizes a grid search algorithm to select feedback gains that minimize a vibration norm at a specific operating speed. These gains are then downloaded as active stiffnesses and dampings with a linear fit throughout the operating speed range to obtain a very effective vibration control.

Copyright © 1993 by The American Society of Mechanical Engineers
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