Embeddable induced strain actuator using a framed 3-3 piezoceramic stack: modeling and characterization

Gary H. Koopmann, George A. Lesieutre, Brian R. Dershem, Weicheng Chen, Shoko Yoshikawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

In an earlier SPIE paper, we described the development of a strain actuator consisting of a thin, co-fired, multilayered, PZT stack mounted within a titanium frame. The frame concept was designed to facilitate integration of the piezoceramic stack into a composite material during the fabrication process. The frame preloads the stack in compression, protects it during material fabrication and most importantly, provides an efficient shear transfer path to the surrounding host material. Because the piezoceramic stack power requirements are quite high, a special amplifier was also designed to meet the high current and voltage requirements. In this paper we focus on assessing the performance of the framed stack actuator for a variety of loading conditions. The calibration procedure uses a specially designed apparatus which loads the framed stack with a variety of impedances ranging from very compliant to very stiff. The mechanical power generated by the stack is measured directly in terms of the force transmitted to these loads along with their displacement. Electrical power is measured directly in terms of electrical current and voltage and is also computed in terms of the electrical admittance of the stack. Results show that the actuator is most efficient when a nearly matched impedance condition exists between the framed stack and its corresponding load.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsC.Robert Crowe
Pages443-454
Number of pages12
Volume2721
StatePublished - 1996
EventSmart Structures and Materials 1996: Industrial and Commercial Applications of Smart Structures Technologies - San Diego, CA, USA
Duration: Feb 27 1996Feb 29 1996

Other

OtherSmart Structures and Materials 1996: Industrial and Commercial Applications of Smart Structures Technologies
CitySan Diego, CA, USA
Period2/27/962/29/96

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All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Koopmann, G. H., Lesieutre, G. A., Dershem, B. R., Chen, W., & Yoshikawa, S. (1996). Embeddable induced strain actuator using a framed 3-3 piezoceramic stack: modeling and characterization. In C. R. Crowe (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 2721, pp. 443-454)