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Proceedings Paper

Low-cost piezocomposite actuator for structural control applications
Author(s): William Keats Wilkie; Robert G. Bryant; James W. High; Robert Lee Fox; Richard F. Hellbaum; Anthony Jalink Jr.; Bruce D. Little; Paul H. Mirick
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Paper Abstract

The design, manufacture, and testing of a low-cost, flexible, planar composite piezoceramic actuator device will be presented. The actuator uses interdigitated electrodes for poling and subsequent actuation of an internal layer of machined piezoceramic fibers. The fiber sheets are formed from monolithic piezoceramic wafers and conventional computer controlled wafer-dicing methods. The fabrication and use of fiber sheets allows precise handing and alignment of piezoceramic fibers during subsequent phases of actuator assembly. Test show that the actuator is capable of producing large, directional in-plane strains; on order of 2000 parts-per-million under a 4000 V peak-to-peak applied voltage cycle. Preliminary endurance testing indicates that the device is relatively durable, with no reductions in free-strain performance up to 90 million electrical cycles.

Paper Details

Date Published: 12 June 2000
PDF: 12 pages
Proc. SPIE 3991, Smart Structures and Materials 2000: Industrial and Commercial Applications of Smart Structures Technologies, (12 June 2000); doi: 10.1117/12.388175
Show Author Affiliations
William Keats Wilkie, NASA Langley Research Ctr. (United States)
Robert G. Bryant, NASA Langley Research Ctr. (United States)
James W. High, NASA Langley Research Ctr. (United States)
Robert Lee Fox, NASA Langley Research Ctr. (United States)
Richard F. Hellbaum, NASA Langley Research Ctr. (United States)
Anthony Jalink Jr., NASA Langley Research Ctr. (United States)
Bruce D. Little, NASA Langley Research Ctr. (United States)
Paul H. Mirick, NASA Langley Research Ctr. (United States)


Published in SPIE Proceedings Vol. 3991:
Smart Structures and Materials 2000: Industrial and Commercial Applications of Smart Structures Technologies
Jack H. Jacobs, Editor(s)

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