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Proceedings Paper

Modeling and simulation of a resonant bimorph actuator drive
Author(s): Eric Michael Mockensturm; Jeremy Eli Frank; Gary H. Koopmann; George Andre Lesieutre
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Paper Abstract

A rotary actuator driven by piezoelectric bimorphs has been developed for various smart structure applications. A rotary (roller) clutch rectifies bimorph oscillation into rotational motion to convert electrical to mechanical power. While prototype actuators perform well, they were designed with just engineering intuition. Here, a mathematical model of the actuator is developed. Using empirical data collected from a prototype actuator and a roller clutch, the mathematical model was tuned so that it predicted accurately the performance of the prototype. The model was then used to perform parameter studies and optimize the design of the actuator. The model predicts that performance can be significantly increased by making slight modifications to the prototype. Work to verify these predictions of the mathematical model is underway.

Paper Details

Date Published: 16 August 2001
PDF: 9 pages
Proc. SPIE 4327, Smart Structures and Materials 2001: Smart Structures and Integrated Systems, (16 August 2001); doi: 10.1117/12.436560
Show Author Affiliations
Eric Michael Mockensturm, The Pennsylvania State Univ. (United States)
Jeremy Eli Frank, The Pennsylvania State Univ. (United States)
Gary H. Koopmann, The Pennsylvania State Univ. (United States)
George Andre Lesieutre, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 4327:
Smart Structures and Materials 2001: Smart Structures and Integrated Systems
L. Porter Davis, Editor(s)

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