According to the "Daily Science" website, in recent years, physicists and material scientists have to deal with such an increasingly prominent challenge - how to design new materials that are controllable so that people do not have to rely solely on the original nature of the materials, so that The physical properties needed to "customize" as you like.
Only by changing the microstructure, traditional materials can be transformed into new materials
University of Massachusetts Amherst physicist Christian Santangelo and physicist Arthur Evans, macromolecular polymerization expert Ryan Hayward, and digital experts from Cornell University and the University of New England West are using an origami-based folding The technology “tunes†the basic physical properties of the material and may eventually develop molecular-level machines that perform mechanical tasks. The relevant research results are published on the "Science" website.
At a physics conference a few days ago, Santangelo mentioned the unique nature of Miura-ori, a special type of origami material. Miura-ori is named after the astrophysicist who invented this technique. It is a series of folded parallelograms that only change the stiffness of the paper by folding.
This special fold, also known as tessellation, can also be seen in some leaves and tissues, and it has a zigzag overlapping pattern in the plane plane. Objects that are folded in this way are a bit like an accordion, so their volume can be compressed very small and the whole object can be unfolded from a corner with very little force. This technology is widely used in the space field and launches satellites equipped with solar arrays.
Santangelo explained: "If you compress the material from one axis, they will start from other aspects. There will be a few materials that show the opposite characteristic, that is, folding in one direction, they will fold from all directions. Miura-ori is using This feature creates new equipment. By simply changing the microstructure, traditional materials can be transformed into new materials."
Santangelo mentioned that active materials can adjust shape, specifications, and physical properties through changes in temperature, pressure, electromagnetic fields, or other environments. With such materials, researchers can create complete structures and systems from simple structures.
Physicists point out that it is almost impossible to find materials that can reset physical properties, but this origami-inspired material can provide high flexibility because the physical properties are mainly affected by the folding method.
13000 Lbs Winch comes with 12 v and 24 v
We have two models for winches in 13000 lbs.
If you need to get something unstuck, lifted, or loaded, an electric winch can save a ton of back-breaking work.
The hardest part may be deciding which one you need.
Winches are commonly available with either a 12V DC or a 110V AC motor.
For fixed operations, such as a marine railway, a 110V winch works well because it can be plugged into an electrical outlet.
For portable applications or use with a vehicle as the anchor, a 12v Winch is the way to go. These units can be hard-wired into a vehicle or simply hooked up to a battery.
The next consideration is capacity-what weight rating should you look for? As a general rule, take the maximum load that you expect to winch and multiply it by 1.5. The weight rating is based on the first wrap of the cable around the drum. With each layer of cable, the pull capacity actually drops, so when in doubt, go larger.
Always stay well to the side of a working winch, and always drape a heavy jacket or tarp over the line. If a cable breaks, the heavy material will help absorb the energy of the taut cable as it snaps back, and reduce the chance of injury.
If a load outweighs your winch rating, remember those high school physics lessons about pulleys and mechanical advantage. You can double the pulling capacity by [doubling" the line. Run it through a Snatch Block attached to the object you`re moving and then back to a fixed object. Twice the capacity, however, equals half the pulling speed.
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