Finite bending and pattern evolution of the associated instability for a dielectric elastomer slab [PDF]
, 2018 We investigate the finite bending and the associated bending instability of an incompressible dielectric slab subject to a combination of applied voltage and axial compression, using nonlinear electro-elasticity theory and its incremental version.
Chen, Weiqiu +3 more
core +2 more sources
A Jumping Robot Driven by a Dielectric Elastomer Actuator
Applied Sciences, 2020 Dielectric elastomer (DE) is a soft material that can deform to a large degree under the action of an electric field. In this paper, multilayer DE films were stacked in parallel to prepare a 20-layer dielectric elastomer actuator (DEA).
Bin Luo +7 more
doaj +1 more source
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
doaj +1 more source
Dual sensing-actuation artificial muscle based on polypyrrole-carbon nanotube composite [PDF]
, 2017 Dual sensing artificial muscles based on conducting polymer are faradaic motors driven by electrochemical reactions, which announce the development of proprioceptive devices. The applicability of different composites has been investigated with the aim to
Fernández Otero, Toribio +2 more
core +2 more sources
Research and analysis of resonant and stiffness of cylindrical dielectric elastomer actuator
Materials Research Express, 2021 Dielectric elastomer actuators draw great interest in the emerging technology of soft actuations. The drifting of resonance frequency and variable stiffness are commonly existed in soft actuations.
Jin Li +4 more
doaj +1 more source
A bistable soft gripper with mechanically embedded sensing and actuation for fast closed-loop grasping [PDF]
, 2019 Soft robotic grippers are shown to be high effective for grasping unstructured objects with simple sensing and control strategies. However, they are still limited by their speed, sensing capabilities and actuation mechanism.
Abidi, Syed Haider +4 more
core +2 more sources
On rate-dependent dissipation effects in electro-elasticity [PDF]
, 2014 This paper deals with the mathematical modelling of large strain electro-viscoelastic deformations in electro-active polymers. Energy dissipation is assumed to occur due to mechanical viscoelasticity of the polymer as well as due to time-dependent ...
Saxena, Prashant +2 more
core +2 more sources
Mechanical Simplification of Variable-Stiffness Actuators Using Dielectric Elastomer Transducers
Actuators, 2019 Legged and gait-assistance robots can walk more efficiently if their actuators are compliant. The adjustable compliance of variable-stiffness actuators (VSAs) can enhance this benefit. However, this functionality requires additional mechanical components
David P. Allen +4 more
doaj +1 more source
Stretchable and transparent hydrogels as soft conductors for dielectric elastomer actuators [PDF]
, 2015 A soft ionic conductor can serve as an artificial nerve in an artificial muscle. A polyacrylamide hydrogel is synthesized containing a hygroscopic salt, lithium chloride.
Bai, Yuanyuan +7 more
core +1 more source
On designing dielectric elastomer actuators [PDF]
Journal 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