In recent years, the use of microelectromechanical systems (MEMS) devices has led to high performing actuators for various applications, including unmanned air vehicles (UAVs) for defense applications. The incorporation of MEMS technology in this field has resulted in miniaturized UAVs with the capability of carrying out sophisticated reconnaissance and relaying real time information remotely; however, maneuverability of these devices around obstacles is still a challenge. This paper presents the design and fabrication of a functionally modified bimorph actuator with enhanced UAV aerodynamics and maneuverability. The actuator is a metal-based MEMS device consisting of stainless steel, lead zirconate titanate (PZT), and titanium/platinum electrodes. COMSOL analysis was performed to examine optimal device design parameters and is presented in this paper. The design consists of off-axis PZT segments on a bimorph PZT layer which results in bend twist coupling. A detailed description of the fabrication process flow developed based on the optimization of the device design is also given. MEMS processing technology was incorporated to produce a torsional cantilever beam that produces angular and linear displacement for superior UAV maneuverability and its performance is also presented in this paper.
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ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 8–10, 2014
Newport, Rhode Island, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-4615-5
PROCEEDINGS PAPER
Design and Fabrication of a Functionally Modified Bimorph Actuator
Johnson Fujamade
,
Johnson Fujamade
Norfolk State University, Norfolk, VA
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Frances Williams
,
Frances Williams
Norfolk State University, Norfolk, VA
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Oliver Myers
,
Oliver Myers
Mississippi State University, Mississippi State, MS
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Brandon Plastied
,
Brandon Plastied
Mississippi State University, Mississippi State, MS
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Messaoud Bahoura
,
Messaoud Bahoura
Norfolk State University, Norfolk, VA
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Asha Hall
,
Asha Hall
US Army Research Laboratory, Aberdeen Proving Ground, MD
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Jaret Riddick
Jaret Riddick
US Army Research Laboratory, Aberdeen Proving Ground, MD
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Johnson Fujamade
Norfolk State University, Norfolk, VA
Frances Williams
Norfolk State University, Norfolk, VA
Oliver Myers
Mississippi State University, Mississippi State, MS
Brandon Plastied
Mississippi State University, Mississippi State, MS
Messaoud Bahoura
Norfolk State University, Norfolk, VA
Asha Hall
US Army Research Laboratory, Aberdeen Proving Ground, MD
Jaret Riddick
US Army Research Laboratory, Aberdeen Proving Ground, MD
Paper No:
SMASIS2014-7650, V002T04A019; 5 pages
Published Online:
December 8, 2014
Citation
Fujamade, J, Williams, F, Myers, O, Plastied, B, Bahoura, M, Hall, A, & Riddick, J. "Design and Fabrication of a Functionally Modified Bimorph Actuator." Proceedings of the ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bioinspired Smart Materials and Systems; Energy Harvesting. Newport, Rhode Island, USA. September 8–10, 2014. V002T04A019. ASME. https://doi.org/10.1115/SMASIS2014-7650
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