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Journal of Astronomical Telescopes, Instruments, and Systems

Analytical analysis of a beam flexural-mode piezoelectric actuator for deformable mirrors
Author(s): Hairen Wang
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Paper Abstract

A beam flexural-mode piezoelectric bimorph actuator is analyzed based on linear piezoelectricity, and the performance of the actuator is studied. The beam bimorph piezoelectric actuator (BBPA), which is a sandwich compound consisting of a lower and an upper piezoelectric ceramic surface layer and a middle layer made of metal, is driven to flexural deformation. The statistical analytical solution and dynamical solutions from the three-dimensional equations of linear piezoelectricity are derived, and the dependence of the performance upon the physical parameters of the BBPA is evaluated. Numerical results illustrate the strengthened performance achieved by adjusting the geometrical and material parameters of the BBPA.

Paper Details

Date Published: 12 November 2015
PDF: 5 pages
J. Ast. Inst. Sys. 1(4) 049001 doi: 10.1117/1.JATIS.1.4.049001
Published in: Journal of Astronomical Telescopes, Instruments, and Systems Volume 1, Issue 4
Show Author Affiliations
Hairen Wang, Purple Mountain Observatory (China)


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