 |
With the continuous advancement of science and technology, countries around the world are developing more advanced anthropomorphic robots and hope that one day they can truly become part of human society. Recently, a new type of fiber material developed by Canadian scientists has made people see the robot's hope of using the “muscle†to perform natural and smooth activities in the future.
According to "Applied Chemistry" magazine, the contents of the article show that researchers at the University of Alberta in Canada recently developed a powerful "artificial muscle", which can do "lifting exercise" under the influence of changes in the surrounding air humidity, effortlessly Lift up more than a few times its own weight.
Researchers describe the "artificial muscle" as a high-molecular polymeric material that can react to chemical or physical stimuli. They have many interesting applications, including controlling "soft" robot motion. All the components of this robot are soft and flexible so as not to damage delicate or fragile objects and to move in narrow spaces.
The “man-made arm†developed by the research team is a small strip of plastic. They first applied a layer of chromium and gold to a plastic film, followed by a microgel monolayer. Microgels are cross-linked polymers that swell in solvent into colloidal particles that are a few microns in diameter. Canadian researchers used negatively charged poly-N-isopropylacrylamide microgels and acrylic acid, and precipitated with a solution containing polycations on the gel as positively charged ions.
When the entire material is dried, the hydrophobic interaction between polycationic hydrocarbon regions is greatly enhanced, causing the polycationic layer to shrink. Due to the strong electrostatic attraction between the polycation and the microgel, the two ends of the tape are bent upwards and the entire material is distorted upwardly. When the air humidity increases, it will stretch back to its original state.
The researchers hung one of these tapes in the living room for testing. By changing the humidity, it can "grab" a small bag "lifting" it up. In another experiment, they hung a series of paper clips at the end of a tiny stretched "arm", changing the humidity to increase or decrease the weight of the "arm". As a result, it could lift up to 14 times its own weight.
“The human arm weighs about 6.5% of the entire body, which is equivalent to a 75-kilogram person lifting a 68.3 kilogram weight with one arm.†Michael Supey of the University of Alberta said that a distorted " The "man-made arm" can even be hung up to 52.2 grams in weight and will not stretch out, which is equivalent to a 75-kilogram man's arm to hold 1280 kilograms of weight.
In the future, this "muscle fiber" is expected to be used to make snake-like robots or to create a human-like "muscle" tissue for upright robots.
Car shock absorbers are vital components of a vehicle's suspension system. They help to improve the overall driving experience by reducing vibrations and impact caused by bumps and uneven surfaces on the road. In this article, we will explore what shock absorbers are, how they work, and why they are important.
What are car shock absorbers?
A car shock absorber is a device that is designed to absorb or dampen shocks and vibrations caused by the movement of the vehicle's wheels. They are typically located between the suspension and the frame of the car and are made up of a cylinder filled with hydraulic fluid and a piston that moves up and down within the cylinder. When the wheel hits a bump on the road, the shock absorber's piston is forced up, compressing the hydraulic fluid inside the cylinder. The fluid then flows through small valves or orifices, dissipating the energy and slowing the movement of the piston.
How do car shock absorbers work?
The main purpose of shock absorbers is to reduce the amount of energy that is transferred to the car's body and the passengers inside the vehicle. As mentioned earlier, when the wheel hits a bump, the shock absorber compresses, slowing down the movement of the wheel and preventing it from bouncing back up. This allows the vehicle's tires to maintain contact with the road surface and ensures that the vehicle remains stable while driving.
Why are car shock absorbers important?
Here are a few reasons why car shock absorbers are important:
Improved safety: Shock absorbers help to improve the safety of a vehicle by keeping the tires in contact with the road surface, which reduces the risk of accidents caused by loss of control.
Improved comfort: Without shock absorbers, passengers would feel every small bump and jolt in the road. Shock absorbers help to improve the overall comfort of the ride by reducing the impact of these bumps.
Extended tire life: Shock absorbers also help to reduce the wear and tear on the vehicle's tires by preventing excessive bouncing and vibration.
In summary, car shock absorbers are an essential component of a vehicle's suspension system. They not only help to improve safety but also provide a comfortable and smooth ride. Regular maintenance and replacement of worn-out shock absorbers are crucial for a vehicle's overall performance and longevity.
Car Absorber,Car Shock Absorber Price,Shockers Car,Vehicle Shock Absorber
Lizhi Precision Manufacturing Technology Co.,Ltd , https://www.lzautoindust.com