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Record Details

Record 57 of 6058
Vibration suppression using smart structures
Author and Affiliation:
Garcia, Ephrahim(NASA Langley Research Center, Hampton, VA, United States)
Inman, Daniel J.(NASA Langley Research Center, Hampton, VA, United States)
Dosch, Jeffrey(New York State Univ., Buffalo, United States)
Abstract: The control of structures for vibration suppression is discussed in the context of using smart materials and structures. Here the use of smart structures refers to using embedded piezoelectric devices as both control actuators and sensors. Using embedded sensors and actuators allows great improvements in performance over traditional structures (both passive and active) for vibration suppression. The application of smart structures to three experimental flexible structures is presented. The first is a flexible beam, the second is a flexible beam undergoing slewing motion, the third is a ribbed antenna. A simple model of a piezoelectric actuator/sensor is presented. The equations of motion for each structure is presented. The control issues considered as those associated with multi-input, multi-output control, PID control and LQR control implementation. A modern control analysis illustrates the usefulness of smart structures for vibration suppression.
Publication Date: Jan 01, 1991
Document ID:
19930048747
(Acquired Dec 28, 1995)
Accession Number: 93A32744
Subject Category: STRUCTURAL MECHANICS
Document Type: Conference Paper
Publication Information: In: Smart structures and materials; Proceedings of the Symposium, 112th ASME Winter Annual Meeting, Atlanta, GA, Dec. 1-6, 1991 (A93-32726 12-39); p. 167-171.; (SEE A93-32726)
Publisher Information: American Society of Mechanical Engineers, New York, United States
Contract/Grant/Task Num: AF-AFOSR-91-0181; NAG1-1187
Financial Sponsor: NASA; United States
Organization Source: NASA Langley Research Center; Hampton, VA, United States
Description: 5p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ACTIVE CONTROL; LINEAR QUADRATIC REGULATOR; MIMO (CONTROL SYSTEMS); PIEZOELECTRIC CERAMICS; SMART STRUCTURES; VIBRATION DAMPING; CANTILEVER BEAMS; EMBEDDING; EQUATIONS OF MOTION; FLEXIBLE BODIES; LEAD ZIRCONATE TITANATES
Imprint And Other Notes: In: Smart structures and materials; Proceedings of the Symposium, 112th ASME Winter Annual Meeting, Atlanta, GA, Dec. 1-6, 1991 (A93-32726 12-39), p. 167-171.
Miscellaneous Notes: Research supported by U.S. Army
Availability Source: Other Sources
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