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Proceedings Paper

Limitations of large-area piezoelectric sensors for structural control
Author(s): Shawn Edward Burke; Jeanne M. Sullivan
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Paper Abstract

When large area piezoelectric sensors are used for structural control, they can exhibit a `hydrostatic' response due to external acoustic sources. This portion of the sensed signal leads to a response much like controller limit cycling if induced-strain actuators are used, because induced-strain actuators have no control authority over the hydrostatic response. Experimental results are shown for a large area PVDF sensor applied to a Bernoulli-Euler plate that demonstrate response to both the structure's strain field and an exogenous acoustic disturbance. Implications for structural and structural/acoustic control are discussed.

Paper Details

Date Published: 8 May 1995
PDF: 7 pages
Proc. SPIE 2443, Smart Structures and Materials 1995: Smart Structures and Integrated Systems, (8 May 1995); doi: 10.1117/12.208296
Show Author Affiliations
Shawn Edward Burke, Boston Univ. (United States)
Jeanne M. Sullivan, Air Force Phillips Lab. (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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