Bio-Inspired Bending Actuator for Controlling Conical Nose Shape Using Piezoelectric Patches

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In this paper, a bio-inspired bending actuator was designed and fabricated using piezoelectric patches and cantilever-shaped beam for controlling nose shape. The aim of this study is to investigate the use of the bending actuator. PZT and single crystal PMN-PT actuators were used to generate translational strain and shear stress. The piezoelectric patches were attached on the clamped cantilever beam to convert their translational strains to bending motion of the beam. First, finite element analysis was performed to identify and to make an accurate estimate of the feasibility on the bending actuation by applying various voltages and frequencies. Based on the results of the FEM analysis, the experiments were also performed. Static voltages and dynamic voltages with various frequencies were applied to the bending actuators with PZTs and PMN-PTs, and the rotation angles of the nose connected to the top of bending actuators were measured, respectively. As the results, the bending actuator using PMN-PT patches showed better performances in all cases. With the increases of signal frequency and input voltage, the rotation angle also found to be increased. Especially at the frequency of 5 Hz and input voltage of 600 V, the nose generated the maximum rotation angle of 3.15 degree.
Publisher
AMER SCIENTIFIC PUBLISHERS
Issue Date
2014-10
Language
English
Article Type
Article
Keywords

FLIGHT; DESIGN

Citation

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.14, no.10, pp.7463 - 7468

ISSN
1533-4880
DOI
10.1166/jnn.2014.9572
URI
http://hdl.handle.net/10203/189263
Appears in Collection
ME-Journal Papers(저널논문)
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