Low-cost piezocomposite actuator for structural control applications

William Keats Wilkie; Robert G. Bryant; James W. High; Robert Lee Fox; Richard F. Hellbaum; Anthony Jalink Jr.; Bruce D. Little; Paul H. Mirick

doi:10.1117/12.388175

12 June 2000 Low-cost piezocomposite actuator for structural control applications

William Keats Wilkie, Robert G. Bryant, James W. High, Robert Lee Fox, Richard F. Hellbaum, Anthony Jalink Jr., Bruce D. Little, Paul H. Mirick

Author Affiliations +

Proceedings Volume 3991, Smart Structures and Materials 2000: Industrial and Commercial Applications of Smart Structures Technologies; (2000) https://doi.org/10.1117/12.388175
Event: SPIE's 7th Annual International Symposium on Smart Structures and Materials, 2000, Newport Beach, CA, United States

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.

Citation Download Citation

William Keats Wilkie, Robert G. Bryant, James W. High, Robert Lee Fox, Richard F. Hellbaum, Anthony Jalink Jr., Bruce D. Little, and Paul H. Mirick "Low-cost piezocomposite actuator for structural control applications", Proc. SPIE 3991, Smart Structures and Materials 2000: Industrial and Commercial Applications of Smart Structures Technologies, (12 June 2000); https://doi.org/10.1117/12.388175

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