Researchers Apply Cockroach Locomotion To New Robots

Researchers Apply Cockroach Locomotion To New Robots
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Johns Hopkins researchers have recently published a study that took a closer look at cockroach locomotion in hopes of applying it towards the design of robots in the future.

Cockroaches remain one of the most resilient creatures in the world. While they’re a major annoyance when infesting a home, their ability to stand up to harsh conditions has allowed the species to thrive and continue to grow despite a changing environment. Most famously known for their ability to survive 15000 the dose of radiation that’s lethal to humans, there’s a lot to learn from these fascinating insects.

Two related papers published by Johns Hopkins researchers took a look at cockroach locomotion and implemented it in tiny, palm-sized robots. The team hopes that, in the future, the idea of cockroach locomotion will be able to be applied to robots that can be deployed in rough terrains such as an alien world or the site of a disaster.

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The team was led by Sean Gart, a postdoctoral fellow at Johns Hopkins, and closely followed cockroach locomotion as they traversed tracks filled with two different kinds of obstacles: large bumps and large gaps. These different obstacles were intended to mimic the terrain that insects usually encounter.

The study found that cockroach locomotion doesn’t take into account self-preservation in dangerous situations. Frequently, cockroaches would bump into walls and then quickly shift to climbing the walls.

The cockroach locomotion was filmed using high-speed cameras and found that the insects’ heads served as a bumper of sorts – reducing the damage of an impact and allowing the cockroach to make a full flip in less than a second.

Chen Li, the senior author of the paper published in Bioinspiration and Biomimetics and an assistant professor mechanical engineering, elaborated on cockroach locomotion and the potential application.

“Where they live, you have all sorts of stuff around you, like dense vegetation or fallen leaves or branches or roots…Wherever they go, they run into these obstacles. We’re trying to understand the principles of how they go through such a complex terrain, and we hope to then transfer those principles to advanced robots.”

Adding in the concepts of cockroach locomotion to new multi-legged robots gave them the ability to traverse gaps and bumps that were 50% and 75% bigger respectively.

“I knew I would be working with these animals, and I was a little scared at first because they just run so fast, and they were so creepy,” said Li. “But as soon as I started working in the lab, I learned that it’s actually very easy to work with them, and they’re actually a very nice, fantastic model organism. Not just because they’re so robust and move so fast, but also because they’re very easy to handle and motivate to run”

“We are just beginning to understand how these critters move through a cluttered 3-D terrain where you have obstacles that are larger than or comparable to the animal or robot’s size,”

Moving forward, the idea of cockroach locomotion may lead to robots with greater capabilities when it comes to navigating uneven terrain. Whether this application is applied on distant planets or here on Earth, it’s clear that this important discovery will help build a new breed of more advanced robotic design.

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Zachary Riley has been writing for several years across a wide variety of platforms, with most of his work focusing on topics related to technology and science. Before starting work with ValueWalk, he worked primarily for websites informing and connecting customers with appropriate internet and television plans. Zachary is currently finishing his Bachelor’s Degree in English at the University of Massachusetts - Lowell.
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