(Press-News.org) A new type of soft robot can crawl like a worm, climb cables, and suddenly snap into a completely different shape to move in a new direction—all controlled by a single air input. This breakthrough, developed by researchers at Seoul National University, introduces a fundamentally new way for soft robots to move and adapt to their surroundings.
A Leap Forward in Soft Robotics
Soft robots, made from flexible materials, are known for their ability to bend and stretch. However, until now, they struggled to precisely control motion and required complex systems with multiple inputs to perform different tasks.
This new robot solves these challenges by using a snap-through mechanism, similar to how a toy jumping popper suddenly flips inside out or how a Venus flytrap quickly closes around its prey. The researchers designed a Snap Inflatable Modular Metastructure (SIMM) that allows the robot to both smoothly deform and rapidly snap into a new configuration—using just one air source.
Soft Robots That Move in Ways Never Seen Before
To demonstrate the power of this system, the team built two robotic designs:
♦ Crawling and Climbing Robot – This robot crawls across surfaces like an earthworm by expanding and contracting its body. Unlike existing soft robots, it can also grip and climb cables, making it useful for navigating difficult environments.
♦ Self-Reconfiguring Robot – This robot moves forward by bending, but then, with a sudden snap, it expands into a larger shape, enabling it to change direction and navigate complex terrain. This ability to move in different directions on demand has never been demonstrated in soft robotics before.
Opening New Possibilities for Adaptive Machines
With its ability to crawl, climb, and snap into new forms, this technology could lead to rescue robots that navigate through debris, medical robots that move inside the human body, and deployable structures that change shape on demand.
This groundbreaking study is published in Cell Reports Physical Science.
□ Introduction to the SNU College of Engineering
Seoul National University (SNU) founded in 1946 is the first national university in South Korea. The College of Engineering at SNU has worked tirelessly to achieve its goal of ‘fostering leaders for global industry and society.’ In 12 departments, 323 internationally recognized full-time professors lead the development of cutting-edge technology in South Korea and serving as a driving force for international development.
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SNU researchers develop soft robot that crawls, climbs, and shape-shifts to move in new directions
Development of a reconfigurable soft robot that achieves movements never seen before in soft robotics
2025-02-11
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[Press-News.org] SNU researchers develop soft robot that crawls, climbs, and shape-shifts to move in new directionsDevelopment of a reconfigurable soft robot that achieves movements never seen before in soft robotics