Mesh Robot Crawls Like an Earthworm
Researchers at MIT, Harvard, and Seoul National University have created a soft autonomous robot that moves via peristalsis, crawling across surfaces by contracting segments of its body, much like an earthworm. The robot has been dubbed 'Meshworm' for the flexible, mesh-like tube that makes up its body. 'Artificial muscle' was created from wire made of nickel and titanium - a shape-memory alloy that stretches and contracts with heat. Meshworm is remarkably resilient and may be useful for navigating rough terrain or squeezing through tight spaces.
Transcript
00:00:01 [Music] researchers at MIT Harvard University and soul National University have engineered a soft autonomous robot that can crawl across surfaces by squeezing segments of its body like an earthworm the robot made almost entirely of soft materials is named meshwork tube that makes up its body mechanical engineer sang B Kim and his
00:00:28 colleagues looked to Nature and specifically the earthworm for design inspiration they noted that the ground dweller is made up of two main muscle groups that work together to inch the worm along researchers created artificial muscle from wire made of nickel and titanium a shape memory alloy that stretches and contracts with heat they wound the wire around the tube
00:00:51 creating segments like that in an earthworm they then applied a small current to the wire segments causing the wire to contract and squeeze the mesh tube prop repelling the robot forward as an ultimate test the group subjected the robot to multiple blows with a hammer even stepping on the robot to check its durability the robot proved remarkably resilient surviving the attacks and
00:01:13 crawling away intact Kim says such a soft robot may be useful for navigating rough terrain or fitting through tight spaces the meshorer endoscopes implants and Prosthetics