Multistage force amplification of piezoelectric stacks

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United States of America Patent

PATENT NO 9048759
APP PUB NO 20120119620A1
SERIAL NO

13293846

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Abstract

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Embodiments of the disclosure include an apparatus and methods for using a piezoelectric device, that includes an outer flextensional casing, a first cell and a last cell serially coupled to each other and coupled to the outer flextensional casing such that each cell having a flextensional cell structure and each cell receives an input force and provides an output force that is amplified based on the input force. The apparatus further includes a piezoelectric stack coupled to each cell such that the piezoelectric stack of each cell provides piezoelectric energy based on the output force for each cell. Further, the last cell receives an input force that is the output force from the first cell and the last cell provides an output apparatus force In addition, the piezoelectric energy harvested is based on the output apparatus force. Moreover, the apparatus provides displacement based on the output apparatus force.

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Patent Owner(s)

  • UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jiang, Xiaoning Cary, US 39 263
Kang, Jin Ho Newport News, US 44 221
Siochi, Emilie J Newport News, US 45 787
Xu, Tian-Bing Hampton, US 11 103
Zuo, Lei Nesconset, US 20 96

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