The nuclear bomb is amazingly powerful and terrible. If you accidentally wipe the gun and fire, isn’t it going to cause panic in the world?
Is there any way to avoid accidents?

 

One way is to use such a device to avoid earthquakes and other vibrations to make the nuclear bombs inadvertently escape –

 

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what is this?

 

In fact, this is
the

insurance and disbursement device

(S&A)
developed by Larry Howell, a professor of mechanical engineering at
Brigham Young University
for the US military
.
It belongs to the called

flexible mechanism

(compliant mechanism)
mechanical mechanism.



 

According to Larry Howell, it is generally considered that there are some mechanical parts in the machine that move with environmental noise, but his team has to turn things that everyone hates into an advantage.

 

Take a look at this flexible mechanism to grab things easily.
It’s a little bit good, because your vise has the same principle.
Yes, the vise is also a flexible mechanism!

 

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But this gadget can put about 30 times the force exerted by the person on the handle.

 

Flexible mechanisms have many advantages over traditional ones.

 

First, the structure of the flexible mechanism is relatively simpler, so it is generally lighter, more convenient to manufacture, and less expensive.
This makes the flexible mechanism particularly suitable for applications that are sensitive to weight, such as the aerospace industry.

 

For example, the flexible “tack” mentioned above can be extruded from the mold like this and then cut.

 

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Moreover, the flexible mechanism is more durable and the movement is more precise.

 

For example, the following gadget similar to a nail clipper
performs strongly in
fatigue testing
, which can be played 1 million times without being bad.

 

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If you want to make parts with a brittle material such as silicon, a flexible mechanism is a good choice.

 

Let’s take a look at this fun toy.

 

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When the elephant’s ass is poked, the part of the nose is not moving.

 

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It looks so fun, you can use this mechanism when testing materials in the wind tunnel to prevent the material from drifting in the wind.

 

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Another advantage of flexible mechanisms is that they are adjustable in size, you can make them very large, or they can be fabricated
on a microscopic scale using techniques such as
photo-lithography
for high-precision electronic devices.

 

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Like the flexible mechanism below, in the case where the rotational speed becomes large, its movable member expands outward due to the centrifugal force, and then mechanically contacts the outer layer to move together.

 

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This device can be used in a chain saw.

 

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Larry Howell’s lab also did a lot of interesting, inspirational mechanisms inspired by origami.

 

Guess what the following gadget is for?

 

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It is used to grasp needles and surgical sutures during surgery.
The Da Vinci Surgical Robotics R&D company works with Larry Howell’s lab and may use this origami mechanical arm in the future.
And its inspiration comes from this origami –

 

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These also

can development agencies

(developable mechanism)
is the best partner Iron Man outside a class of science fiction bone.

 

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The exhibitable mechanism is of great use in surgical equipment.

 

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Because the surgical tool can be folded and re-expanded, the patient’s wound does not have to be cut very large during the operation, which helps the postoperative healing.

 

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This mechanism can be turned into a wheel, and when it encounters an obstacle, it can be turned into a hook for climbing.

 

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There are also such expandable drones that are also very interesting and lighter than traditional drones.

 

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The collapsible bulletproof shield recently developed by Larry Howell’s lab has also become a net red on the Internet.

 

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This bulletproof shield is inspired by Yoshimura origami.

 

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The existing bulletproof shield weighs 40 kilograms and is very inconvenient to carry, and can only protect one person.
But this bulletproof device with a weight of only 22 kg can protect 2-3 people.

 

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It is not only very light, it can also be folded.

 

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It contains 12 layers, including
kevlar (aramid fiber, commonly used to make body armor)
and aluminum.
Look at the bulletproof effect –

 

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There are also some fun flexible institutions and exhibitable institutions below, which are of great use in the field of engineering –

 

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