Mimicking the human body, specifically the actuators that control muscle movement, is of immense interest around the globe. In recent years, it has led to many innovations to improve robotics, prosthetic limbs and more, but creating ラーメンベット 入金不要ボーナス 出金 actuators typically involves complex processes, with expensive and hard-to-find materials.
Researchers at The University of Texas at Austin and Penn State University have created a new type of fiber that can perform like a muscle actuator, in many ways better than other options that exist today. And, most importantly, ラーメンベット 入金不要ボーナス 出金 muscle-like fibers are simple to make and recycle.
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“You can basically build a limb from these fibers in a robot that responds to stimuli and returns power, instead of using a mechanical motor to do this, and that’s good because then it will have a softer touch,” said Manish Kumar, an associate professor in the ラーメンベット 禁止ゲーム of ラーメンベット 入金不要ボーナス 出金’s Department of Civil, Architectural and Environmental ラーメンベット 入金不要ボーナス 出金 and one of the lead authors of the paper.
This kind of robotic arm could be used in an assistive exoskeleton to help people with weak arms regain movement and strength. Another potential application, the researchers say, could be a sort of "self-closing bandage" that could be used in surgical procedures and naturally degrade inside the body once the wound heals.
“Actuators are any material that will change or deform under any external stimuli, like parts of a machine that will contract, bend, or expand,” said Robert Hickey, assistant professor of materials science and ラーメンベット 入金不要ボーナス 出金 at Penn State and corresponding author on the paper. “And for technologies like robotics, we need to develop soft, lightweight versions of these materials that can basically act as artificial muscles. Our work is really about finding a new way to do this.”
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Similar existing fibers require an electric current to stimulate the reactions that bond parts together. This chemical cross-linking is harder to make happen, compared to the researchers' new fiber, which is a mechanical reaction, meaning the parts take care of most ラーメンベット 入金不要ボーナス 出金 work themselves. Another added bonus is it is simple to reverse the process and return the pieces ラーメンベット 入金不要ボーナス 出金 fiber to their original states.
"The ease of making these fibers from the polymer and their recyclability are very important, and it's an aspect that much of the other complicated artificial muscle ラーメンベット 入金不要ボーナス 出金 doesn't cover," Kumar said.
The researchers found their fibers were 75% more efficient in terms of converting energy to movement, able to handle 80% more strain and could rotate with more speed and force than current actuators. And it can stretch to more than 900% of its length before it breaks.
The discovery came while the researchers were working on something else. They were trying to use ラーメンベット 入金不要ボーナス 出金 polymers to make membranes for water filtration. However, the structures they made were too long for membranes. They stretched out to five times their original length and held that length. The researchers noticed that ラーメンベット 入金不要ボーナス 出金 characteristics were similar to muscle tissue, so they decided to shift the focus.
The researchers are early on in the project, and they next plan to learn more about the structural changes ラーメンベット 入金不要ボーナス 出金 polymer and improve some ラーメンベット 入金不要ボーナス 出金 actuation properties, including energy density and speed. They also may use this same design technique to create actuators that respond to different stimuli, such as light.
Venkat Ganesan, a professor in the McKetta Department of Chemical ラーメンベット 入金不要ボーナス 出金 and Rui Huang, professor in the Department of Aerospace ラーメンベット 入金不要ボーナス 出金 and ラーメンベット 入金不要ボーナス 出金 Mechanics, are the other Texas Engineers on the team. Also on the team from Penn State are Chao Lang, Elisabeth Lloyd, Kelly Matuszewski and Yifan Xu. The Air Force Office of Scientific Research, National Science Foundation and Penn State funded the research.
