Spherical Soft Robots Use Shape Memory Alloys

Spherical soft robots that move by changing their shape with shape-memory alloy wire are under development at Ritsumeikan University in Japan. I was really interested in seeing these robots, having written about the earlier circular soft robots developed by the same team (see Soft Robot Powered By Shape Memory Alloy Spokes).

In the comments to that article, reader coucou astutely asked "couldn't it be extended to a sphere? A ball rolling in any direction ...". And that's exactly what they did - take a look at the spherical soft robot video below.


(Spherical Soft Robots video)

Researchers Yuuta Sugiyama and Shinichi Hirai of the Department of Robotics at Ritsumeikan University, writing in their paper, describe how a soft spherical robot can also crawl and jump.

"...we employ soft actuators to controllably deform a robot body, enabling it to crawl and jump on rough terrain. Self-deformation of the robot body generates the spatial gradient of the gravitational potential energy of the robot crawling on the ground. By charging the elastic potential energy in the robot's deformable body and releasing it rapidly, the robot generates enough impulse to make it jump. Crawling and jumping by deformation enables the robot to be used over terrain too rough for rigid body robots. Additionally, soft-body deformation reduces the risk of injury should the body collide with humans."

Science fiction fans may be thinking that this technology could serve as the basis for the Rovers, the surveillance guardians from the Sixties television series The Prisoner.

Update: 21-Oct-2016: The first time I read about the idea of a shape memory alloy was in Samuel R. Delany's 1966 novel Babel-17; see the entry for tensile memory polarized matter. End update.

From Crawling and Jumping by a Deformable Robot via Botjunkie. Also, take a look at the researcher's Crawling and jumping soft robots page.

Scroll down for more stories in the same category. (Story submitted 9/11/2009)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 1 )

Related News Stories - (" Robotics ")

When Computers Develop Their Own Language, Will They Talk To Us?
'The curious absent look of a robot talking on the TBR circuits - the Talk Between Robots radio...' - Frederik Pohl, 1954.

Robot Strolls Field, Examines EVERY Plant
'The great machines that did the work ... required but a few dozen men to cultivate an entire county.' - John W. Campbell

TITAN-III Spider Robot Is WAY Too Quick (Video)
'My little friends can find you wherever you go!' - Michael Crichton, 1984.

Bill Gates Suggests Tax On Robots
'A worker replaced by a nubot that 'appears or pretends to be human' had to be compensated...'- John Twelve Hawks, 2014.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Keith Laumer's Bolo Autonomous Tanks Right On Schedule
'I cannot lie idle under attack.'

When Computers Develop Their Own Language, Will They Talk To Us?
'The curious absent look of a robot talking on the TBR circuits - the Talk Between Robots radio...'

LipNet Reads Lips - Until Disconnected, That Is
'We'd have to cut his higher brain functions... I'm not sure what [HAL} would think about that.'

Eterni.me - To Skype With The Dead
'Nothing... left of Jeserac but a galaxy of electrons frozen in the heart of a crystal.'

Wearable MRI Is Former Occulus/Facebook Exec's New Project
'Your cephalochromoscope... that you always turn on and play when you get home...'

Ford Stratasys Infinte Build 3D Printer
'He proudly indicated his Buick... Almost as good as the original it was printed from...'

The Space Suit As Personal Spaceship
'Darn clever, these suits...'

Dune Fans! Your God Emperor Is Ready
'If one held a sandtrout in the hand, smoothing it over your skin, it formed a living glove.'

Robot Strolls Field, Examines EVERY Plant
'The great machines that did the work ... required but a few dozen men to cultivate an entire county.'

Sweden Outlaws Drones
'An eye that could not only see, but fly, roam, travel at speeds and in directions to suit its operator...'

Wear Your Self-Powered Generator
'It's basically a micro-sandwich...'

TITAN-III Spider Robot Is WAY Too Quick (Video)
'My little friends can find you wherever you go!'

Bill Gates Suggests Tax On Robots
'A worker replaced by a nubot that 'appears or pretends to be human' had to be compensated...'

Handle, New Wheeled Hopping Robot
'the hopper sprang thirty feet into the air...'

Matrix Sentinel Ancestor, The Pipe Inspector Robot From Krakow
Watch out, Keanu!

Auto-Focus Smart Glasses Have Liquid Lenses
'Hufhuf oil held in static tension by an enclosing force field within a viewing tube...'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.