ELECTROACTIVE POLYMER EAP ACTUATORS AS ARTIFICIAL MUSCLES PDF

December 31, 2019   |   by admin

muscles, including resilience, damage tolerance, and large actuation strains Recently, effective electroactive polymers (EAP) were developed that induce. Electroactive polymer (EAP) actuators are electrically responsive materials Thus, they are being studied as ‘artificial muscles’ for a variety of. actuators. The main attractive characteristic of. Electroactive polymers. (EAP) is their operational similarity to biological muscles, particularly their resilience.

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The similarity includes resilient, damage tolerant, and large actuation strains stretching, contracting, or bending. The editor Yoseph Bar-Cohen from Jet Propulsion Laboratories is a central person in the field of polymer actuators and he has collected contributions from a number of the leading scientist in the field.

The first topic is the introduction and the last is the summary. However, before these materials can be applied as actuators of practical devices their actuation force and robustness will need to be increased significantly from the levels that are currently exhibited by the available materials.

Natural muscles Two chapters by Gerald H. These advances are bringing the field significantly closer to the point where engineers consider EAPs to be actuators of choice.

Electric and ionic EAP.

The effort is multidisciplinary and cooperation among scientists, engineers, and other experts e. Polymers are a promising alternative to materials commonly used aftuators actuators, such as piezoelectric ceramics, shape memory alloys, magnetostrictive materials, and electrorheological fluids.

My feeling is that this chapter could equally well have been covered by a reference to one of the many excellent books on computational chemistry and polymer modelling. Experts in chemistry, materials science, electro-mechanics, robotics, computer science, electronics, and others are working together to develop improved EAP materials, processing techniques, and applications. ep

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The chapter written by Dr. The book comprises 21 chapters organised in 8 topics. The chapter by professor Full gives a wealth of important information on the performance of the muscle in working conditions. He sums up the advantages and disadvantages of Zctuators materials, point to challenges to be overcome in the future development of EAP and reviews a long list of possible and actual application areas.

This chapter is an excellent reference for the progress within DEA.

Electroactive polymer actuators as artificial muscles: are they ready for bioinspired applications?

It has more the form of a research paper than a review, but interesting work on dielectric elastomer actuators can be found here. To emulate natural movements is of obvious importance for application in robotics. One of the books strengths is an excellent introductory chapter to EAP materials and actuators.

Also, the whole field of microfabrication of polymer actuators is sparsely touched on. Advances reported in this second edition include an improved understanding of these materials’ behavior, better analytical modeling, as well as more effective characterization, processing, and fabrication techniques.

Topic three is parted into one more subtopic: Fabrication methods obviously depend strongly on the system at hand, as well as do test methods.

Their many unique characteristics can make them a valuable alternative to current actuators such as electroactive ceramics and shape memory alloys.

The change in this view occurred in the early s, as a result of the musclss of new EAP materials that exhibit a large displacement in response to electrical stimulation. The team members included Dr. Stewart Sherrit for their help.

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For actuagors years the field of EAP has received relatively little attention because the number of available materials and their actuation capability were limited. In this second edition the reader is brought current on promising advances in EAP that have occurred in electric EAP, electroactive polymer gels, ionomeric polymer-metal composites, carbon nanotube actuators, and more. Professor Shahinpoors group from Univ. DEA is an electrostatic actuator and perhaps the polymer actuator, whose functionality has the least resemblance to natural muscles of all.

On the positive side, there has already been a series of reported successes in demonstrating miniature manipulation devices, including a catheter steering element, robotic arm, gripper, loudspeaker, active diaphragm, dust-wiper, and many others.

Electroactive polymer actuators as artificial muscles: are they ready for bioinspired applications?

The book is the first attempt to give a full review of the state-of-the-art within polymer actuators. In Decemberthe Japanese company Eamex produced a robot fish that swims in a water tank without batteries or a motor.

The next two chapters are more speculative in nature because the applications they describe have not been realised with EAP actuators yet.