Design and fabrication of a three-dimensional meso-sized robotic metamaterial with actively controlled properties
| Autor: | Sridharan Thirumalai, Jonathan B. Hopkins, Chenyang Luo, Michael Cullinan, Yuanping Song, Ian S. Ladner, Chang Zhao |
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| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Fabrication Computer science Process Chemistry and Technology Metamaterial 02 engineering and technology 021001 nanoscience & nanotechnology 020901 industrial engineering & automation Mechanics of Materials Electronic engineering Robot General Materials Science Electrical and Electronic Engineering 0210 nano-technology Actuator |
| Zdroj: | Materials Horizons. 7:229-235 |
| ISSN: | 2051-6355 2051-6347 |
| DOI: | 10.1039/c9mh01368g |
| Popis: | Metamaterials can achieve naturally unobtainable properties according to how their microarchitectures are engineered. By incorporating robot-inspired actuators, sensors, and microprocessors within their microarchitectures, still more extreme properties and diverse combinations of properties can be achieved; and their properties can be actively tuned in real time according to uploaded control instructions. Despite the enormous potential of such robotic metamaterials, no three-dimensional designs have been demonstrated because such designs are difficult to make using existing fabrication approaches. Making them with constituent cells small enough to be considered a material instead of a collection of macro-sized robots is even more difficult. Here we demonstrate the first fabricated three-dimensional robotic metamaterial that achieves actively controlled properties. It's cells are meso-sized (5 mm), which make them the smallest robots to date among those intended to work together within a lattice for achieving any objective. We optimize the design's geometry and demonstrate its ability to tune its stiffness as desired using closed-loop control. |
| Databáze: | OpenAIRE |
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