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Title:Design and testing of fiber-constrained electroactive polymer
Author(s):Lee, Kun Hyuck
Department / Program:Mechanical Sci & Engineering
Discipline:Mechanical Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:M.S.
Genre:Thesis
Subject(s):electroactive polymer
dielectric elastomer
electromechanical system
thermodynamic
micro-architectured electro-elasto-kinematic (MEEK)
high-stiffness-micro-fiber (HSMF)
prestretching
contraction
anisotropy
actuation
soft robotics
biomimetic
buckling
Instability
wrinkle
compliant electrode
fiber-constraint
conductive wire
image processing
Fourier Transform
Fourier Series
fiber alignment
conformation state
electrostatic pressure
dipole
polarization
Abstract:Soft robotics take advantage of active materials to regenerate many complex motions, including low-force functions, such as camouflage, micro-grabbing, or agile locomotion of micro robot. For these applications, traditional actuators, like electric motors and combustion engines, are unnecessarily large and heavy. In contrast, electro-active polymers (EAP) such as electrostatically actuated dielectric elastomers (DE) are considered very suitable technologies for these applications. In particular, owing to their simplicity, high strain and energy densities, and low noise, DE’s are currently the most promising candidates for small scale biomimetic applications. In this study, new fiber-constrained DE designs are developed, in order to obtain controlled uniaxial actuation that suits soft robotics and small scale actuation. Also, micro-wrinkle instabilities that occur in fiber-constrained membranes are examined. The property of wrinkle defers by controlling the geometrical parameters and the amount of strain in a membrane. Therefore controlling the shape of wrinkle is applicable for micro-actuation. In addition, image analysis methodology is discussed and creative ways of analyzing the image data is established.
Issue Date:2015-05-01
Type:Thesis
URI:http://hdl.handle.net/2142/78694
Rights Information:Copyright 2015 Kun Hyuck Lee
Date Available in IDEALS:2015-07-22
Date Deposited:May 2015


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