Engineers have given the robot by human muscles Reported - BNA iTech


Post Top Ad

Post Top Ad

Tuesday, July 19, 2016

Engineers have given the robot by human muscles Reported

Robots – current limitations

Robots, no matter how intelligent, are restricted by their muscles which are able to lift loads only half its own weight – about equivalent to an average human’s strength (though some humans could lift loads up to three times their weight). Artificial muscles have been known to extend to only three times its original length when similarly stressed. The muscle’s degree of extendability is a significant factor contributing to the muscle’s efficiency as it means that it could perform a wider range of operations while carrying heavy loads.

Super, artificial muscles

Explaining how he and his multidisciplinary team managed to design and create their novel superhuman muscles, Dr Koh said, “Our materials mimic those of the human muscle, responding quickly to electrical impulses, instead of slowly for mechanisms driven by hydraulics. Robots move in a jerky manner because of this mechanism. Now, imagine artificial muscles which are pliable, extendable and react in a fraction of a second like those of a human. Robots equipped with such muscles will be able to function in a more human-like manner – and outperform humans in strength.”
In order to achieve this, Dr Koh and his team have used polymers which could be stretched over 10 times their original length. Translated scientifically, this means that these muscles have a strain displacement of 1,000 per cent.

A good understanding of the fundamentals was largely the cause of their success, Dr Koh added.
“We put theory to good use. Last year, we calculated theoretically that polymer muscles driven by electrical impulse could potentially have a strain displacement of 1,000 per cent, lifting a load of up to 500 times its own weight. So I asked my students to strive towards this Holy Grail, no matter how impossible it sounded,” he said.
Though they could only achieve a modicum of their target, it is a first in robotics. For his contributions, Dr Koh was awarded the Promising International Researcher Award at the 3rd International Conference on Electromechanically-Active Polymer Transducers and Artificial Muscles in June 2013, held in Zürich, Switzerland. The Award recognises young researchers from outside Europe, who have made significant contributions in the field of electromechanically-active polymers, and display promise to successful career in the field.

The Japanese built the skeleton robot, equipped with a mechanical “muscles” of the pneumatic fiber, almost perfectly imitating the work of human muscles.

A team of Japanese inventors created a robotic motion system that mimics the human muscular system. The model developed Suzumori Endo Lab at the Tokyo Institute of Technology will be an important step towards the development of humanoid robots.

Human Robot Arms

As a basis for the “muscle” the researchers used a plurality of thin tubular fibers. They are set in motion by the action of a pneumatic pump, which pumps the gas (eg, air) to simulate abbreviations and relaxations. Such a device allows prototype of robot  to walk, move his hands, biting and perform other motor functions. The problem is that at this stage the muscle simulator must be permanently connected to the air pump,as without gas source source it will be useless.

Work on the improvement of the project continues, because the whole world is looking forward to the emergence of full-android robots.

Post Top Ad