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Model Development for PZT Bimorph Actuation Employed for Micro-Air Vehicles

[+] Author Affiliations
John Crews

Applied Research Associates, Raleigh, NC

Nikolas Bravo, Ralph Smith

North Carolina State University, Raleigh, NC

Paper No. SMASIS2016-9266, pp. V002T03A025; 6 pages
doi:10.1115/SMASIS2016-9266
From:
  • ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • Volume 2: Modeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting
  • Stowe, Vermont, USA, September 28–30, 2016
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-5049-7
  • Copyright © 2016 by ASME

abstract

In the paper, we discuss the development of a model for PZT bimorph actuators used to power micro-air vehicles including Robobee. Due to highly dynamic drive regimes required for the actuators, models must quantify the nonlinear, hysteretic, and rate-dependent behavior inherent to PZT in these regimes. We employ the homogenized energy model (HEM) framework to model the actuator dynamics and numerically we illustrate the capability of the model to characterize the inherent hysteresis. This provides a comprehensive model, which can be inverted and implemented for certain control regimes.

Copyright © 2016 by ASME

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