Robotics
| Researchers in Greece have created a robot octopus that swims and crawls just like a real octopus. Along with soft robot arms, the latest version also features a compliant web that not only makes the robot look more lifelike, but improves swimming performance. |
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Researchers have continued to develop their eight arm soft robot, that is able to propel itself underwater by movements of its arms, either alone or interconnected via a newly added passively-compliant web.
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The octopus robot was created by Dr Asimina Kazakidi and her colleagues at Institute of Computer Science Foundation for Research & Technology - Hellas in Greece.
The video above shows the difference between the robotic octopus swimming with just flexible arms, and swimming with the new soft web attachment.
This robotic swimmer is first investigated computationally via dynamical models capturing the arm and web compliance, and indicating the effect of various kinematic parameters of the system on its motion. The performance of the robotic prototype has been, tested experimentally, to demonstrate this novel mode of underwater propulsion by combining various patterns of sculling movements of the arms and web.
The researchers report that the addition of a soft and supple silicone web has nearly doubled the speed of the roboctopus, and not satisfied with that, the scientists have also taught it to crawl, carry objects, and swim free in the Aegean Sea.
SOURCE IEEE Spectrum
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