Results 21 to 30 of about 3,300 (296)
Vacuum-gap electrostatic multilayer actuators for space robotics [PDF]
Nature CommunicationsActuation of space robots poses significant challenges in ensuring operation in vacuum. Conventional electromagnetic technologies face inherent limitations due to heat dissipation and difficulties in lubrication, whereas recent electrostatic alternatives,
Ion-Dan Sîrbu +6 more
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Dielectric elastomer actuators [PDF]
Journal of Applied Physics, 2021 Dielectric elastomer actuators (DEAs) are soft, electrically powered actuators that have no discrete moving parts, yet can exhibit large strains (10%–50%) and moderate stress (∼100 kPa). This Tutorial describes the physical basis underlying the operation of DEA's, starting with a simple linear analysis, followed by nonlinear Newtonian and energy ...
Ehsan Hajiesmaili, David R. Clarke
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Wireless Powered Dielectric Elastomer Actuator [PDF]
IEEE Robotics and Automation Letters, 2021 The need for cable connection with soft robotic systems suppresses the benefits granted by their softness and flexibility. Such systems can be untethered by equipping batteries or by relying on non-electrical actuation mechanisms. However, these approaches cannot simultaneously support long-term and intelligent operations.
Lai Chen +6 more
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Soft Biomimetic Fish Robot Made of Dielectric Elastomer Actuators [PDF]
Soft Robotics, 2018 Jun Shintake +2 more
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Nature Communications, 2023 Dielectric elastomers (DEs) are widely used in soft actuators but existing DE actuators often require high driving electrical fields. Here the authors demonstrate that introducing cyanoethyl cellulose into plasticized PVC gel confers high dielectric ...
Jianjian Huang +4 more
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Effect of Prestrain on the Actuation Characteristics of Dielectric Elastomers [PDF]
Polymers, 2020 Dielectric elastomers (DEs) represent a class of electroactive polymers that deform due to electrostatic attraction between oppositely charged electrodes under a varying electric field. Over the last couple of decades, DEs have garnered considerable attention due to their much-coveted actuation properties.
Mayank Kumar +8 more
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Theoretical study of the electroactive bistable actuator and regulation methods
International Journal of Smart and Nano Materials, 2023 Dielectric elastomer actuators have attracted growing interest for soft robot due to their large deformation and fast response. However, continuous high-voltage loading tends to cause the electric breakdown of the actuator due to heat accumulation, and ...
Wenjie Sun +3 more
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Actuators, 2021 Soft actuators are compliant material-based devices capable of producing large deformation upon external stimuli. Dielectric elastomer actuators (DEA) are a type of soft actuator that operates on voltage stimuli. Apart from soft robotics, these actuators
Milan Shrestha +3 more
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Dielectric Elastomer Actuator for Soft Robotics Applications and Challenges
Applied Sciences, 2020 This paper reviews state-of-the-art dielectric elastomer actuators (DEAs) and their future perspectives as soft actuators which have recently been considered as a key power generation component for soft robots.
Jung-Hwan Youn +6 more
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Actuation response of polyacrylate dielectric elastomers [PDF]
SPIE Proceedings, 2001 Polyacrylate dielectric elastomers have yielded extremely large strain and elastic energy density suggesting that they are useful for many actuator applications. A thorough understanding of the physics underlying the mechanism of the observed response to an electric field can help develop improved actuators.
Kofod, G. +3 more
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