Muscles made of nylon

Muscles made of nylon

[MUSIC PLAYING] Pulling inspiration
from nature is not a new concept for engineers. Specifically, the attempt
to mimic or replicate the intricacies of muscles,
how they move and bend, extend and contract, and so on,
is something researchers have been interested in learning
more about for some time now. Artificial muscles can
have many applications, from robotics to some components
in the automobile and aviation industries, but
they are currently very expensive and limited
in their capabilities. However, now, a group
of MIT researchers have come up with one of
the simplest and lowest cost systems yet, in which
a material reproduces some of the bending motions that
natural muscle tissues perform regularly. The key ingredient–
nylon fiber. It turns out some
polymer fiber materials, including a special
type of nylon, have an unusual property. When heated, they shrink in
length but expand in diameter. The researchers found
that by modifying the shape of the fiber, and
then selectively heating it on one side, they can
force the fiber to bend. By heating specific areas
of the fiber in sequence, they found they can produce
more complex movements. For example, in their lab tests,
the team used this technique to get the fibers to move in
circles and then in figure 8’s. Various heat sources can
be used on the fibers, including electric resistance
heating, chemical reactions, or a laser beam that
shines on the filament. Someday, the researchers
suggest this kind of system could be used to
produce a variety of biomedical devices,
robotic grippers, or machine components. [MUSIC PLAYING]

44 Replies to “Muscles made of nylon”

  1. that is brilliant, this could also work for step-to-step motors and anything related with electronic and mechanic circuits

  2. what will the purpose be for something like this? it's nylon; too much heat and it will melt and to mitigate that you need more area to spread the heat, which adds weight, cancelling (some of) the work done by the nylon because now it has to put the energy in to move itself. not to mention that it's slow to respond, so what type of "gripper" or "machine component" are we talking about here; something that picks up a block of styrofoam?

  3. 0:55 Видно дым )), КПД такой "мышцы" не сравним с органической. На видео- физический опыт школьного курса ))

  4. Дайте мне 1% от тех денег, которые выделились на эти исследования и Я вам дам реальную технологию. А этот опыт связан с температурным коэффициентом линейного расширения материалов.

  5. Cool, you could mimic nervous stimuli by using semi-translucent nylon fiber and shining the laser down the fiber like fiber optics. Allowing specific and instantaneous actuation unlike anything we've ever seen, maybe creating something even more efficient than our own muscles.


  7. Seems good, but I think relay on heat gives more problems than advantages, we need this kind of fiber but thatworks mosly based on any kind of voltage.

  8. This is amazing in terms of what someone can do with a cheap material such as Nylon. Specially the multi-directional actuation part was awesome !! I just did a bit of research about the authors and it looks like the first author is a composer as well (?) Well, do you expect less from a MIT guy ?!

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