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Proceedings Paper

Monolithic piezoelectric actuators and vibration dampers with interdigital electrodes
Author(s): Shoko Yoshikawa; Michael Farrell; David J. Warkentin; Robert N. Jacques; Erik Saarmaa
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Paper Abstract

This paper provides a quantitative assessment of the performance of interdigital electrode (IDE) actuators and dampers constructed using ACX QuickPackTM piezoelectric packaging technology. The details of the concept, device design, experimental plan and results, and analysis of the IDE devices are presented. Electromechanical coupling coefficients calculated using two different methods indicated values of 0.45 to 0.71 were achieved for IDE devices, as compared to 0.29 to 0.35 for conventional d31 devices. Experimental results are provided that compare the damping and actuation performance of conventional d31 devices with the performance of IDE devices. Resistively shunted IDE damper devices achieved greater than a factor of two in improvement in added damping over conventional PZT dampers. In addition, the high field generative strain of IDE actuators was shown to be 70% greater than that produced by a d31 actuator.

Paper Details

Date Published: 9 June 1999
PDF: 8 pages
Proc. SPIE 3668, Smart Structures and Materials 1999: Smart Structures and Integrated Systems, (9 June 1999); doi: 10.1117/12.350735
Show Author Affiliations
Shoko Yoshikawa, Active Control eXperts, Inc. (United States)
Michael Farrell, Active Control eXperts, Inc. (United States)
David J. Warkentin, Active Control eXperts, Inc. (United States)
Robert N. Jacques, Active Control eXperts, Inc. (United States)
Erik Saarmaa, Active Control eXperts, Inc. (United States)


Published in SPIE Proceedings Vol. 3668:
Smart Structures and Materials 1999: Smart Structures and Integrated Systems
Norman M. Wereley, Editor(s)

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