Silent Feet uses an advanced polymer technology to
absorb vibrations caused by appliances such as refrigerators and washing
machines. The material, called Sorbothane, is said to have achieved shock
absorption levels of up to 94.7 percent.
Sorobothane is a thermoset,
polyether-based polyurethane that has a high damping coefficient and maintains
its property over a wide temperature range. Its unique effectiveness derives
from the fact that it's a solid that flows like a liquid under load and retains
excellent memory. Other polyurethanes and rubber are one-dimensional under
load. Sorbothane's visco-elastic properties mimic human flesh. The elastic
properties of rubber return energy to the system. The material is custom molded
using the resin transfer molding process at Sorbothane's manufacturing location
in Kent, Ohio.
Another interesting aspect of the process is its use as a middle, or
"constrained" layer, between two structural layers, or as an "extensional"
layer on top of a structural layer. It's produced in a durometer range from 25
to 85 Shore "00" Scale.
Sorbothane, first developed in
1982, has been widely used as a shoe insole, as well as for a variety of
engineering applications. Silent Feet are newly engineered pads that feature
two "easy-slide" rear feet and two "super-sticky" front feet.
A new service lets engineers and orthopedic surgeons design and 3D print highly accurate, patient-specific, orthopedic medical implants made of metal -- without owning a 3D printer. Using free, downloadable software, users can import ASCII and binary .STL files, design the implant, and send an encrypted design file to a third-party manufacturer.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.