Results 31 to 40 of about 1,358 (261)

Nonlinear Dynamics of a Resonant-Impact Dielectric Elastomer Actuator

open access: yesApplied System Innovation, 2022
In recent years, with the rapid development of soft robots, dielectric elastomer actuators (DEAs) as a novel type of soft actuators have been widely studied. However, DEAs often suffer from low instantaneous output force/power, especially in high payload
Chuang Wu   +3 more
doaj   +1 more source

On designing dielectric elastomer actuators [PDF]

open access: yesJournal of Applied Physics, 2008
Subject to a voltage, a dielectric elastomer can deform substantially, making it a desirable material for actuators. Designing such an actuator, however, has been challenging due to nonlinear equations of state, as well as multiple modes of failure, parameters of design, and measures of performance. This paper explores these issues, using a spring-roll
Moscardo, Mickael   +3 more
openaire   +2 more sources

High-Speed, Helical and Self-Coiled Dielectric Polymer Actuator

open access: yesActuators, 2021
Novel actuator materials are necessary to advance the field of soft robotics. However, since current solutions are limited in terms of strain, strain rate, or robustness, a new actuator type was developed.
Johannes Mersch   +4 more
doaj   +1 more source

Using a Fully Fractional Generalised Maxwell Model for Describing the Time Dependent Sinusoidal Creep of a Dielectric Elastomer Actuator

open access: yesFractal and Fractional, 2022
Actuators made of dielectric elastomers are used in soft robotics for a variety of applications. However, due to their mechanical properties, they exhibit viscoelastic behaviour, especially in the initial phase of their performance, which can be observed
Timi Karner, Rok Belšak, Janez Gotlih
doaj   +1 more source

Effects of Thinner Compliant Electrodes on Self-Clearability of Dielectric Elastomer Actuators

open access: yesActuators, 2020
A metalized plastic capacitor stands a higher chance to clear faults when embodied with thinner electrodes. However, it is not clear whether the same thickness effect applies to carbon-based compliant electrodes in clearing the defects in dielectric ...
Gih-Keong Lau   +2 more
doaj   +1 more source

Dielectric Elastomer Actuators with Carbon Nanotube Electrodes Painted with a Soft Brush

open access: yesActuators, 2018
We propose a simple methodology to paint carbon nanotube (CNT) powder with a soft brush onto an elastomer. A large deformation of dielectric elastomer actuator (DEA) occurs according to the small constraint of the electrodes. Uniform painting with a soft
Hiroki Shigemune   +6 more
doaj   +1 more source

Dielectric elastomer actuator biased by magnetorheological elastomer with permanent magnet

open access: yesSmart Materials and Structures, 2023
Abstract Dielectric elastomer actuators have become one of the most important smart material transducers in recent times. One of the crucial aspects in this field is the application of bias to find the best operating conditions. The basic task is to find the proper bias configuration to obtain a wide range of displacements in the ...
Jakub Bernat   +3 more
openaire   +2 more sources

Elastic Cube Actuator with Six Degrees of Freedom Output

open access: yesActuators, 2015
Unlike conventional rigid actuators, soft robotic technologies possess inherent compliance, so they can stretch and twist along every axis without the need for articulated joints.
Pengchuan Wang, Andrew T. Conn
doaj   +1 more source

Influence of loading voltage, domain ratio, and additional load on the actuation of dielectric elastomer

open access: yesNanotechnology Reviews, 2022
Dielectric elastomer (DE) is widely used in various fields because of its advantages of large deformation, lightweight, and good flexibility. In this article, based on our previous research work, the actuation performance of the cone dielectric elastomer
Wang Hong, Yang Liang
doaj   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

open access: yesAdvanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

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