The machine must be flexible enough to move over uneven surfaces, yet not so big that it’s restricted from tight spaces.
It might also be required to climb slopes of varying inclines. Existing robots can do many of these things, but the majority require large amounts of energy and are prone to overheating. Georgia Tech researchers have designed a new machine by studying the locomotion of a certain type of flexible, efficient animal.
“By using their scales to control frictional properties, snakes are able to move large distances while exerting very little energy,” said Hamid Marvi, a Mechanical Engineering Ph.D. candidate at Georgia Tech.
While studying and videotaping the movements of 20 different species at Zoo Atlanta, Marvi developed Scalybot 2, a robot that replicates rectilinear locomotion of snakes. He unveiled the robot this month at the Society for Integrative & Comparative Biology (SICB) annual meeting in Charleston, S.C.
“During rectilinear locomotion, a snake doesn’t have to bend its body laterally to move,” explained Marvi. “Snakes lift their ventral scales and pull themselves forward by sending a muscular traveling wave from head to tail. Rectilinear locomotion is very efficient and is especially useful for crawling within crevices, an invaluable benefit for search-and-rescue robots.”
Scalybot 2 can automatically change the angle of its scales when it encounters different terrains and slopes. This adjustment allows the robot to either fight or generate friction. The two-link robot is controlled by a remote-controlled joystick and can move forward and backward using four motors.
“Snakes are highly maligned creatures,” said Joe Mendelson, curator of herpetology at Zoo Atlanta. “I really like that Hamid’s research is showing the public that snakes can help people.”
Marvi’s advisor is David Hu, an assistant professor in the Schools of Mechanical Engineering and Biology. Hu and his research team are primarily focused on animal locomotion. They’ve studied how dogs and other animals shake water off their bodies and how mosquitos fly through rainstorms.
This isn’t the first time Hu’s lab has looked at snake locomotion. Last summer the team developed Scalybot 1, a two-link climbing robot that replicates concertina locomotion. The push-and-pull, accordion-style movement features alternating scale activity.
This project is supported by the National Science Foundation (NSF) (Award No. PHY-0848894). The content is solely the responsibility of the principal investigators and does not necessarily represent the official views of the NSF.
Jason Maderer | Newswise Science News
Cancer diagnosis: no more needles?
25.05.2018 | Christian-Albrechts-Universität zu Kiel
Less is more? Gene switch for healthy aging found
25.05.2018 | Leibniz-Institut für Alternsforschung - Fritz-Lipmann-Institut e.V. (FLI)
The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.
Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...
A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.
The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...
At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.
At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...
There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?
At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
25.05.2018 | Event News
02.05.2018 | Event News
13.04.2018 | Event News
25.05.2018 | Event News
25.05.2018 | Machine Engineering
25.05.2018 | Life Sciences