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Dielectric-elastomer minimum-energy structures (DEMES) form an emerging class of soft robotic systems. The appropriate materials and methods for rapidly fabricating DEMES prototypes are described. A DEMES component suitable for use in highly-deformable soft robots is presented and analyzed. Combinations of this component into snakelike robots are also presented. Calculations for determining the upper...
Energy harvesting using dielectric elastomers is an interesting possibility to convert ambient energy into electric energy. Different small scale prototypes of energy harvesting devices, like SRI's wind- and wave-power generators have been developed so far. Nevertheless, the theoretical limits and practical implementation still have to be considered. In a previous paper the achievable energy gain...
Dielectric elastomer actuators (DEAs) are promising for bionic and robotic applications. Reliability requirements in such applications necessitate better knowledge of the safe operation regimes and possible failure modes of DEAs. Elastomers consist of a network of entangled and cross-linked polymer chains, able to sustain spatially varying stress and strain fields, accompanied by stored elastic energy...
In this paper, compounds of polydimethylsiloxane (PDMS) filled up with nanoscaled titanium dioxide were prepared. The influence of the filler on the mechanical, dielectric, and electromechanical properties was investigated. The overall electromechanical response kappaexp, as well as the Maxwell effect (kappaM) and true electrostriction (kappaE) were evaluated for the enhancement of electromechanical...
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