Monolithic piezoelectric actuators and vibration dampers with interdigital electrodes

Shoko Yoshikawa; Michael Farrell; David J. Warkentin; Robert N. Jacques; Erik Saarmaa

doi:10.1117/12.350735

9 June 1999 Monolithic piezoelectric actuators and vibration dampers with interdigital electrodes

Shoko Yoshikawa, Michael Farrell, David J. Warkentin, Robert N. Jacques, Erik Saarmaa

Proceedings Volume 3668, Smart Structures and Materials 1999: Smart Structures and Integrated Systems; (1999) https://doi.org/10.1117/12.350735
Event: 1999 Symposium on Smart Structures and Materials, 1999, Newport Beach, CA, United States

Abstract

This paper provides a quantitative assessment of the performance of interdigital electrode (IDE) actuators and dampers constructed using ACX QuickPack^TM 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.

Citation Download Citation

Shoko Yoshikawa, Michael Farrell, David J. Warkentin, Robert N. Jacques, and Erik Saarmaa "Monolithic piezoelectric actuators and vibration dampers with interdigital electrodes", Proc. SPIE 3668, Smart Structures and Materials 1999: Smart Structures and Integrated Systems, (9 June 1999); https://doi.org/10.1117/12.350735

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