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Mechanical Sciences An open-access journal for theoretical and applied mechanics

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Mech. Sci., 4, 303-310, 2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
02 Sep 2013
Design and optimization of a XY compliant mechanical displacement amplifier
A. Eskandari and P. R. Ouyang Department of Aerospace Engineering, Ryerson University, Toronto, Canada
Abstract. Piezoelectric actuators are increasingly becoming popular for the use in various industrial, pharmaceutical, and engineering applications. However, their short motion range limits their wide applications. This shortcoming can be overcome by coupling the piezoelectric actuators with a mechanical displacement amplifier. In this paper, a new design for a XY planar motion compliant mechanical displacement amplifier (CMDA) based on the design of a symmetric five-bar compliant mechanical amplifier is introduced. Detailed analysis with Finite Element Method (FEM) of static and dynamic characteristics of the proposed XY CMDA design is also provided. Finally, the optimization process and results to increase the Amplification Ratio (AR) of the proposed XY compliant mechanism with minimal compromise in Natural Frequency (NF) is discussed.

Citation: Eskandari, A. and Ouyang, P. R.: Design and optimization of a XY compliant mechanical displacement amplifier, Mech. Sci., 4, 303-310,, 2013.
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