Multi-functional soft-bodied jellyfish-like swimming
By Ziyu Ren, Wenqi Hu, Xiaoguang Dong, Metin Sitti. Nature Communications, 2019
508 citations recorded by the source corpus.
The functionalities of the untethered miniature swimming robots significantly decrease as the robot size becomes smaller, due to limitations of feasible miniaturized on-board components. Here we propose an untethered jellyfish-inspired soft millirobot that could realize multiple functionalities in moderate Reynolds number by producing diverse controlled fluidic flows around its body using its magnetic composite elastomer lappets, which are actuated by an external oscillating magnetic field. We particularly investigate the interaction between the robot’s soft body and incurred fluidic flows due to the robot’s body motion, and utilize such physical interaction to achieve different predation-inspired object manipulation tasks. The proposed lappet kinematics can inspire other existing jellyfish-like robots to achieve similar functionalities at the same length and time scale. Moreover, the robotic platform could be used to study the impacts of the morphology and kinematics changing in ephyra jellyfish. It is challenging to reduce the size of untethered swimming robots whilst keeping their multiple manipulation and other functions. Ren et al. achieve this goal using a jellyfish-inspired soft millirobot design in an oscillating magnetic field, which can be operated in fluids with moderate Reynolds numbers.
Subfields: Biomedical Engineering, Condensed Matter Physics, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/8946878aaa11d79b8233392e0a048eb5bdf30722
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In Biomedical Engineering
In Condensed Matter Physics
In Mechanical Engineering
Citations in the corpus
- The shape – morphing performance of magnetoactive soft materials (2021, background): “[234] devised a millimetre scale jellyfish-inspired swimming soft robot that can navigate fluid flows at a moderate Reynolds number (Re).”