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Proceedings Paper

Deflection control of beam-like structures by using a piezoelectric sensor and actuator
Author(s): Ji Yao Shen; Lonnie Sharpe Jr.; Min Fu Lu
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Paper Abstract

A finite element model for piezo-layer bonded beams, based on general finite element approach, has been developed. The modified model has been applied to the deflection controller design of a cantilevered beam supporting a distributed load q, by using piezoelectric layer as both sensors and actuators. The sensors generate electric voltages caused by the deflection of the loaded beam and the voltages through amplifiers apply to the actuators which generate control bending moments on the composite beam. A numerical examples for deflection control of a composite beam with seven elements is presented in detail in this paper.

Paper Details

Date Published: 8 May 1995
PDF: 8 pages
Proc. SPIE 2443, Smart Structures and Materials 1995: Smart Structures and Integrated Systems, (8 May 1995); doi: 10.1117/12.208299
Show Author Affiliations
Ji Yao Shen, North Carolina A&T State Univ. (United States)
Lonnie Sharpe Jr., North Carolina A&T State Univ. (United States)
Min Fu Lu, Florida Institute of Technology (United States)

Published in SPIE Proceedings Vol. 2443:
Smart Structures and Materials 1995: Smart Structures and Integrated Systems
Inderjit Chopra, Editor(s)

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