Results 141 to 150 of about 4,240 (298)

Dielectric elastomer actuators: medical applications review

Discover Materials
Electroactive polymers are effective actuators that respond to electrical stimuli, producing mechanical displacement. Their combined features encourage the application of electroactive polymers in the medical and healthcare sectors. Dielectric elastomers
Mikael Ghevondyan, Marina Davtyan, Marina Aghayan   +2 more
doaj   +1 more source

Solid Particle‐Liquid Metal Mixtures for Robust High‐Current Interconnects in Stretchable Electronics and Soft Robotics

Advanced Materials Technologies, EarlyView.
Metallic microparticles dispersed in liquid metal interconnects mitigate electromigration‐induced failure by reconfiguring internal current density distributions. These fillers facilitate the growth of a robust, protective gallium oxide shell at elevated temperatures, shifting the failure threshold toward a thermal limit.
Ethan J. Krings, Calan Brant, Carson Emeigh, Donovan Vincent Jr., Ravi Tutika, Sangjin Ryu, Eric J. Markvicka   +6 more
wiley   +1 more source

Effect of Prestrain on the Actuation Characteristics of Dielectric Elastomers. [PDF]

Polymers (Basel), 2020
Kumar M, Sharma A, Hait S, Wießner S, Heinrich G, Arief I, Naskar K, Stöckelhuber KW, Das A.   +8 more
europepmc   +1 more source

Novel high dielectric constant hybrid elastomers as candidates for dielectric elastomer actuators [PDF]

, 2017
Presently, none of the reported elastomers meets the optimal requirements expected to produce a commercially attractive dielectric elastomer film. Therefore, bold approaches have to be undertaken in order to make significant improvements. The presented research deals with the simple idea of incorporating high-permittivity polar liquids in discrete ...
Mazurek, Piotr; id_orcid 0000-0002-8055-2766, Yu, Liyun; id_orcid 0000-0002-4293-3066, Gerhard, Reimund, Wirges, Werner, Skov, Anne Ladegaard; id_orcid 0000-0003-1223-6638   +4 more
openaire  

Testing and Simulation of Multilayer Polyvinylidene Fluoride‐Based Piezoelectric Energy Harvester Devices

Advanced Materials Technologies, EarlyView.
The study considers the use of polymer/dielectric‐based multilayers piezoelectric Energy Harvesters (EH) to produce an output voltage and current, by exploiting the mechanical energy provided by human organs movements. In particular, the heart motion is considered from the kinematic viewpoint, and a multiphysics theoretical model is developed to assess
Hamdi Ezzin, Silvia Monchetti, Paolo Emilio Puddu, Luciano Teresi, Antonio DeSimone, Roberto Brighenti   +5 more
wiley   +1 more source

A large-strain and ultrahigh energy density dielectric elastomer for fast moving soft robot

Nature Communications
Dielectric elastomer actuators (DEAs) with large actuation strain and high energy density are highly desirable for actuating soft robots. However, DEAs usually require high driving electric fields (>100 MV m−1) to achieve high performances due to the low
Wenwen Feng, Lin Sun, Zhekai Jin, Lili Chen, Yuncong Liu, Hao Xu, Chao Wang   +6 more
doaj   +1 more source

Elimination of Necking and Aspect Ratio Dependence in Uniaxial Actuators by Continuous Fiber Reinforcement

Advanced Robotics Research, EarlyView.
A novel carbon fiber reinforcement for dielectric elastomer actuators enhances actuation force while decoupling electromechanical performance from the actuator's aspect ratio. Unlike conventional fiber reinforcements, it enables a uniform planar stretch state along the entire actuator.
Markus Koenigsdorff, Stefania Konstantinidi, Anett Endesfelder, Petr Osipov, Johannes Mersch, E.‐F. Markus Vorrath, Martina Zimmermann, Yves Perriard, Gerald Gerlach   +8 more
wiley   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Dielectric Elastomers UV-Cured from Poly(dimethylsiloxane) Solution in Vinyl Acetate. [PDF]

Polymers (Basel), 2020
Park SK, Choi M, Kim DW, Park BJ, Shin EJ, Park S, Yun S.   +6 more
europepmc   +1 more source

High-strain actuator materials based on dielectric elastomers

, 2000
Dielectric elastomers are a new class of actuator materials that exhibit excellent performance. The principle of operation, as well as methods to fabricate and test these elastomers, is summarized here.
Pan, Zhengwei, Zhou, Weiya, Shi, Wensheng, Pelrine, R., Wang, Ning, Wong, Ning Biu, Lee, Chun Sing, Xie, Sishen, Lee, Shuit Tong, Lai, Hau Ling, Kornbluh, R., Kofod, G., Au, Frederick C.K., Duan, Xioafeng   +13 more
core   +1 more source