Modeling and simulation of a resonant bimorph actuator drive

Eric Michael Mockensturm; Jeremy Eli Frank; Gary H. Koopmann; George Andre Lesieutre

doi:10.1117/12.436560

16 August 2001 Modeling and simulation of a resonant bimorph actuator drive

Eric Michael Mockensturm, Jeremy Eli Frank, Gary H. Koopmann, George Andre Lesieutre

Proceedings Volume 4327, Smart Structures and Materials 2001: Smart Structures and Integrated Systems; (2001) https://doi.org/10.1117/12.436560
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

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.

Citation Download Citation

Eric Michael Mockensturm, Jeremy Eli Frank, Gary H. Koopmann, and George Andre Lesieutre "Modeling and simulation of a resonant bimorph actuator drive", Proc. SPIE 4327, Smart Structures and Materials 2001: Smart Structures and Integrated Systems, (16 August 2001); https://doi.org/10.1117/12.436560

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