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Miniature Piezo Composite Bimorph Actuator for Elevated Temperature Operation

[+] Author Affiliations
Charles E. Seeley, Eladio Delgado

GE Global Research Center, Niskayuna, NY

Jan Kunzman

Smart Materials Corporation, Dresden, Germany

Dirk Bellamy

GE Industrial - Security, Salem, OR

Paper No. IMECE2007-44088, pp. 405-415; 11 pages
  • ASME 2007 International Mechanical Engineering Congress and Exposition
  • Volume 10: Mechanics of Solids and Structures, Parts A and B
  • Seattle, Washington, USA, November 11–15, 2007
  • Conference Sponsors: ASME
  • ISBN: 0-7918-4304-1 | eISBN: 0-7918-3812-9
  • Copyright © 2007 by ASME


Development of a new, miniature actuator with large stroke and enhanced thermal stability could provide an improved capability for useful applications. This paper investigates the design, fabrication and testing of a macro fiber composite (MFC) based bimorph actuator to meet stringent requirements such as size, stroke and thermal stability. Results indicate that a d33 /d31 MFC configuration was compact and provided sufficient stroke while avoiding issues related to depolarization at elevated temperature. A compact, high voltage power supply that runs off of a 3 volt battery was also developed as part of this effort.

Copyright © 2007 by ASME



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