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Development of smart variable stiffness actuators using polymer hydrogels

Santulli, C., Patel, S. I., Jeronimidis, G., Davis, F. J. ORCID: https://orcid.org/0000-0003-0462-872X and Mitchell, G. R. (2005) Development of smart variable stiffness actuators using polymer hydrogels. Smart Materials & Structures, 14 (2). pp. 434-440. ISSN 0964-1726

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To link to this item DOI: 10.1088/0964-1726/14/2/018

Abstract/Summary

In this work, compliant actuators are developed by coupling braided structures and polymer gels, able to produce work by controlled gel swelling in the presence of water. A number of aspects related to the engineering of gel actuators were studied, including gel selection, modelling and experimentation of constant force and constant displacement behaviour, and response time. The actuator was intended for use as vibration neutralizer: with this aim, generation of a force of 10 N in a time not exceeding a second was needed. Results were promising in terms of force generation, although response time was still longer than required. In addition, the easiest way to obtain the reversibility of the effect is still under discussion: possible routes for improvement are suggested and will be the object of future work.

Item Type:Article
Refereed:Yes
Divisions:Science > School of Mathematical, Physical and Computational Sciences
Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
Interdisciplinary centres and themes > Chemical Analysis Facility (CAF) > Electron Microscopy Laboratory (CAF)
Science > School of the Built Environment
ID Code:5631
Uncontrolled Keywords:ARTIFICIAL MUSCLES, VIBRATION CONTROL, GEL, FIBERS, SHAPE

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