Results 181 to 190 of about 1,266 (219)
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Integrated sensing and actuation of dielectric elastomer actuator
SPIE Proceedings, 2017Dielectric elastomer (DE) is a type of soft actuating material, the shape of which can be changed under electrical voltage stimuli. DE materials have great potential in applications involving energy harvesters, micro-manipulators, and adaptive optics. In this paper, a stripe DE actuator with integrated sensing and actuation is designed and fabricated ...
Zhihang Ye, Zheng Chen
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Simulation of Networked Dielectric Elastomer Balloon Actuators
IEEE Robotics and Automation Letters, 2016A dielectric elastomer is able to act as an actuator when subjected to an electric field. However, the allowable deformation of dielectric elastomer actuators is severely limited by the material failures. To extend the actuation range, this letter investigates a network of two interconnected dielectric elastomer balloon actuators, each prestretched by ...
Feifei Chen 0002, Michael Yu Wang
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Stress measurements of planar dielectric elastomer actuators
Review of Scientific Instruments, 2016Dielectric elastomer actuator (DEA) micro- and nano-structures are referred to artificial muscles because of their specific continuous power and adequate time response. The bending measurement of an asymmetric, planar DEA is described. The asymmetric cantilevers consist of 1 or 5 μm-thin DEAs deposited on polyethylene naphthalate (PEN) substrates 16 ...
Bekim Osmani +2 more
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Polychloroprene: a new material for Dielectric Elastomer Actuators.
MRS Proceedings, 2011ABSTRACTDielectric Elastomer Actuators (DEAs) consist of an elastomeric layer sandwiched between two compliant electrodes. An electric field applied between the two electrodes will lead to a compression of the elastomer due to the Maxwell’s pressure. DEA can be used for many active applications such as pumps, muscles and so on, where the voltage drives
Wache, R, Risse, S, Schulze, M, Kofod, G
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Dielectric elastomers as next-generation polymeric actuators
Soft Matter, 2007Due to their versatile properties, robust behavior, facile processability and low cost, organic polymers have become the material of choice for an increasing number of mature and cutting-edge technologies. In the last decade or so, a new class of polymers capable of responding to external electrical stimulation by displaying significant size or shape ...
Ravi, Shankar +2 more
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Modeling of Dielectric Elastomer Actuator
2019Dielectric elastomer deforms in terms of area expansion under a voltage. The large and quick strain in dielectric elastomer features promising applications in soft robotics. This chapter introduces the characteristics of dielectric elastomer in physics as well as the performance of dielectric elastomer actuator (DEA).
Bo Li, Hualing Chen, Guimin Chen
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Bending Dielectric Elastomer Actuators
ECS Meeting AbstractsDielectric Elastomer Actuators (DEAs) are a type of electroactive polymers that transform electric energy into mechanical work and are capable of large strains and high energy densities. DEAs are often described as “artificial muscles” because they exhibit strains, energy density, and responsiveness similar to natural human muscles.
Katelyn Wilson +3 more
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Contractile Hydrostatically Coupled Dielectric Elastomer Actuators
IEEE/ASME Transactions on Mechatronics, 2012The so-called hydrostatically coupled dielectric elastomer actuators (HC-DEAs) have recently been described as a means to improve versatility and safety of electroactive polymer actuators made of DEs. HC-DEAs use an incompressible fluid that mechanically couples a DE-based active part to a passive part interfaced to the load.
CARPI, FEDERICO +2 more
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Advances in Dielectric Elastomers for Actuators and Artificial Muscles
Macromolecular Rapid Communications, 2009AbstractA number of materials have been explored for their use as artificial muscles. Among these, dielectric elastomers (DEs) appear to provide the best combination of properties for true muscle‐like actuation. DEs behave as compliant capacitors, expanding in area and shrinking in thickness when a voltage is applied.
Paul, Brochu, Qibing, Pei
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A survey on dielectric elastomer actuators for soft robots
Bioinspiration & Biomimetics, 2017Conventional industrial robots with the rigid actuation technology have made great progress for humans in the fields of automation assembly and manufacturing. With an increasing number of robots needing to interact with humans and unstructured environments, there is a need for soft robots capable of sustaining large deformation while inducing little ...
Guo-Ying, Gu +3 more
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