4.6 Article

Dielectric elastomer actuator biased by magnetorheological elastomer with permanent magnet

期刊

SMART MATERIALS AND STRUCTURES
卷 32, 期 9, 页码 -

出版社

IOP Publishing Ltd
DOI: 10.1088/1361-665X/aceddd

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dielectric elastomer actuator (DEA); magnetorheological elastomers (MRE); bias; dielectric electroactive polymers (DEAP)

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In this study, a novel bias configuration using magnetorheological elastomer (MRE) was developed to achieve a wide range of displacement in a dielectric elastomer actuator. The feasibility of using MRE as a bias for the actuator was verified through experiments, and the advantages and disadvantages of this new bias type were discussed.
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 actuator. In the literature, various biases, such as mechanical springs, permanent magnets (PMs), or pneumatic springs, are studied. In our work, the magnetorheological elastomer (MRE) is applied to build a novel bias that ensures a wide range of displacement. Because of the softness and the compliant chemical structure, the MRE can be easily integrated with the dielectric elastomer actuator. The MRE as a bias for a dielectric elastomer actuator is verified in the series of experiments. Finally, the discussion on the advantages and disadvantages of the new bias type is performed.

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