Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

An omnidirectional octopus-like robot arm that can stretch, bend and twist without a motor
https://techxplore.com ^ | 31 AUGUST 2021 | by Bob Yirka , Tech Xplore

Posted on 08/31/2021 1:00:56 PM PDT by Red Badger

An octopus-inspired, origami robotic arm. Credit: Shuai Wu. A combined team of researchers from The Ohio State University and the Georgia Institute of Technology has developed a robot arm that moves like an octopus arm without the need for a motor. In their paper published in Proceedings of the National Academy of Sciences, the group describes their robot arm, which moves in response to changes in a magnetic field around it.

Noting that the need for motors and control units makes most robot arms big and heavy, the researchers set themselves the goal of building one that would not need either. Instead, theirs would be controlled by altering its surrounding magnetic field.

To create the robot arm, the researchers looked to the octopus and the ancient art of origami. To build an arm that could mimic an octopus arm, the researchers used a segmented approach. The arm was built using individual segments made of hexagonal-shaped, soft dual silicon plates with embedded magnetic particles. The plates were connected using tilted plastic panels that conformed to the kresling origami pattern.

Next, the segments were connected together at the plates. The arm was then placed into a controllable magnetic field. Because each segment had its own magnetic particles, each could be controlled individually by the researchers by changing the parameters of the magnetic field. This gave the robot arm 360 degrees of movement. It also allowed the robot arm to change its length by compressing the segments in a twisting fashion, similar to a concertina, or by pulling them to make them longer. The researchers note that computerizing the magnetic field could lead to very fine control of the arm by a user using a simple game-like controller. Under such an environment, the arm, possibly with an attached hand or claw, could move in limitless ways. They also note that the design allows for customization, including the number of segments, plate size and the degree of bendability.

The researchers acknowledge that their robot arm lacks strength but suggest it does not need strength because they envision it, or a similar design, being using in applications that require more finesse than strength. They suggest it might prove useful in medical applications, for example, where a high level of accuracy is required.

VIDEOS AT LINK..............................


TOPICS: Business/Economy; Science; Society
KEYWORDS: robot; robotics; technology

1 posted on 08/31/2021 1:00:56 PM PDT by Red Badger
[ Post Reply | Private Reply | View Replies]

To: ShadowAce; upchuck; SunkenCiv; null and void; Slings and Arrows; martin_fierro

Ping!.................


2 posted on 08/31/2021 1:01:44 PM PDT by Red Badger (Homeless veterans camp in the streets while illegal aliens are put up in hotels.....................)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Red Badger

So kinda like Mr Fantastic from the Fantastic Four?


3 posted on 08/31/2021 1:47:41 PM PDT by rfreedom4u ("You may all go to hell and I will go to Texas")
[ Post Reply | Private Reply | To 1 | View Replies]

To: rfreedom4u

Or Doc Oc from the spider universe


4 posted on 08/31/2021 1:54:40 PM PDT by freepertoo
[ Post Reply | Private Reply | To 3 | View Replies]

To: Red Badger

The researchers acknowledge that their robot arm lacks strength but suggest it does not need strength because they envision it, or a similar design, being using in applications that require more finesse than strength.


More, yes, but this doesn’t look like it is even close to supporting its own weight towards the end. The ‘strength’ here isn’t minor, it is trivial.


5 posted on 08/31/2021 4:34:37 PM PDT by lepton ("It is useless to attempt to reason a man out of a thing he was never reasoned into"--Jonathan Swift)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Red Badger

Prolly too much to ask if they can make one of these in the shape of a woman :)


6 posted on 08/31/2021 4:57:24 PM PDT by upchuck (The longer I remain unjabbed, the more evidence I see supporting my decision.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Red Badger; rdb3; JosephW; martin_fierro; Still Thinking; zeugma; Vinnie; ironman; Egon; raybbr; ...

7 posted on 09/01/2021 6:16:42 AM PDT by ShadowAce (Linux - The Ultimate Windows Service Pack )
[ Post Reply | Private Reply | To 1 | View Replies]

To: Red Badger; All

It’s first practical application will probably be in the porn industry, so lazy millenials can jerk off without effort!


8 posted on 09/01/2021 6:34:21 AM PDT by notdownwidems (Washington D.C. has become the enemy of free people everywhere!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Red Badger

It’s....it’s... it’s a slinky

https://www.toyhalloffame.org/toys/slinky

“Mechanical engineer Richard James invented the Slinky by accident. In 1943, he was working to devise springs that could keep sensitive ship equipment steady at sea. After accidentally knocking some samples off a shelf, he watched in amazement as they gracefully “walked” down instead of falling.”


9 posted on 09/01/2021 6:50:07 AM PDT by GOPJ (DC white trash 'elites' desire a permanent ruling class held up by a violent angry black underclass)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Red Badger

Howard from The Big Bang Theory wants to put a hand on the end.


10 posted on 09/01/2021 7:31:12 AM PDT by grey_whiskers (The opinions are solely those of the author and are subject to change with out notice.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ShadowAce

Just what the world needs; an animated dryer vent hose.


11 posted on 09/01/2021 8:10:16 PM PDT by BraveMan
[ Post Reply | Private Reply | To 7 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson