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Home Robotics

Flexible tentaclelike robotic manipulators inspired by nature

seprameen by seprameen
December 21, 2021
in Robotics
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Versatile tentaclelike manipulators pushed by air stress and impressed by nature designed to understand and manipulate quite a lot of gentle objects. Credit score: Dong Wang

Conventional robots can have problem greedy and manipulating gentle objects if their manipulators usually are not versatile in the best way elephant trunks, octopus tentacles, or human fingers may be.

In Utilized Physics Evaluations, investigators from Shanghai Jiao Tong College in China developed a sort of multiple-segment gentle manipulator impressed by these organic techniques. The gentle manipulators are based mostly on pneu-nets, that are pneumatically actuated elastomeric buildings.

These buildings have a tentaclelike form and encompass a sequence of linked inside chambers which may be inflated pneumatically, blowing them up like a balloon. One facet of the tentacle is very versatile whereas the opposite is stiffer. Growing air stress to the chambers causes the construction to bend towards the stiff facet.

“Now we have designed gentle manipulators utilizing a mathematical mannequin that may comply with a specific 3D spatial trajectory,” mentioned creator Dong Wang. “Our gentle manipulator consists of a number of segments the place every phase exhibits a special actuation mode—twisting, in-plane bending, or helical actuation—by selecting completely different chamber orientations.

“The important thing advance of this work is the event of a mathematical methodology that may robotically design gentle manipulators matching complicated 3D trajectories upon single pressurization.”

The group designed manipulators for quite a lot of 3D trajectories by various the geometric, materials, and loading parameters for his or her pneu-net buildings. They had been in a position to do an inverse design to create a manipulator that might comply with a particular trajectory.







Versatile tentaclelike manipulators pushed by air stress and impressed by nature designed to understand and manipulate quite a lot of gentle objects. Credit score: Dong Wang

The design methodology depends on a mathematical mannequin that’s a lot more cost effective to make use of than conventional computational fashions. The group confirmed their mathematical method produced manipulator designs with behaviors just like computational fashions. They validated their outcomes utilizing easy experiments.

See also  Schaeffler expands robotics portfolio with Melior Motion acquisition

“To realize actually versatile purposes of the designed gentle manipulators, extra work is required,” mentioned creator Guoying Gu.

Amongst this future work are methods to increase the method to techniques with a number of actuators. As well as, the inverse design course of continues to be not absolutely computerized, because the first stage of the method requires a human operator select the areas of the curve which can be assigned to twisting, bending, or helical deformation.

“We are able to envision an automatic system to do that step utilizing machine studying or different strategies,” mentioned Gu.

This work ought to have purposes in robotic grippers, implantable and wearable units, and robots transferring by unpredictable terrains.


Method quickens thermal actuation for gentle robotics


Extra info:
“Modeling and inverse design of bio-inspired multi-segment pneu-net gentle manipulators for 3-D trajectory movement” Utilized Physics Evaluations, DOI: 10.1063/5.0054468

Supplied by
American Institute of Physics

Quotation:
Versatile tentaclelike robotic manipulators impressed by nature (2021, December 21)
retrieved 21 December 2021
from https://techxplore.com/information/2021-12-flexible-tentaclelike-robotic-nature.html

This doc is topic to copyright. Aside from any truthful dealing for the aim of personal research or analysis, no
half could also be reproduced with out the written permission. The content material is offered for info functions solely.



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