Modelling the mechanical dither of a ring resonator

Abstract This article presents a numerical model for a piezoelectric actuator. This model estimates the layer configurations and flexural stiffness of multilayered materials in order to improve the actuator design. Mechanical dithering can be used to avoid the limitation of the lock-in region in a r...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science Journal of mechanical engineering science, 2010-06, Vol.224 (6), p.1185-1191
Main Authors: Lee, D-C, Shin, D-I, Kim, Y-S, Lee, J-Y, Han, C-S
Format: Article
Language:English
Subjects:
Actuator design
Design engineering
Design improvements
Design optimization
Dithering
Estimates
Geometry
Mathematical analysis
Mathematical models
Mechanical engineering
Motors
Numerical analysis
Optimization
Piezoelectric actuators
Piezoelectricity
Plates (structural members)
Resonators
Rigidity
Shell theory
Stiffness
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Summary:Abstract This article presents a numerical model for a piezoelectric actuator. This model estimates the layer configurations and flexural stiffness of multilayered materials in order to improve the actuator design. Mechanical dithering can be used to avoid the limitation of the lock-in region in a ring resonator. Although the vibro-elastic bimorph piezoelectric actuator has been used as a control, there are in fact piezoelectric rigidity effects on its layered structure. In this study, the plate/shell theory was adapted to multilayered structures; the geometric and material characteristics of multilayered systems were investigated and their structural performances were estimated. Moreover, the optimization designs for the geometric dimensions or material properties of layered systems were easily achieved through the presented equations.
ISSN:0954-4062
2041-2983
DOI:10.1243/09544062JMES1717