 |
There is a car that can travel without refueling or recharging. Its power comes from gravity.
It sounds magical. Is it greener than the electric cars that are being developed?
Don’t believe it, there’s really such a car called “Carbonless Carâ€. In these two days, 111 carbonless cars made their appearance in the Zhejiang Institute of Metrology and participated in the competition.
Carbonless car power
Similar watch wring
In the China Institute of Metrology, the first session of the Zhejiang University College Student Engineering Training Comprehensive Ability Competition and the third National College Student Engineering Training Comprehensive Ability Competition were held. More than 270 college students from more than 30 colleges and universities in the province participated in the competition.
The theme of the competition is "The more barriers to carbonless cars".
This carbon-free trolley, driven by the gravity of a plumb on the car, is driven by no fuel, and is driven by no one. It is required to drive automatically on the ground and avoid obstacles.
In the Tianjian gymnasium of the Metrology Institute, two long tracks are set up, and every other meter on the track has obstacles.
The 111 carbon-free cars designed by participating college students are waiting to be seen. These carbon-free trolleys have different appearances, but their parts are designed similarly. They consist of wheels, balance tables, gears, rods, and plumb bobs.
How does a carbonless car go? Zhou Jili, the contest's chief of arbitration, introduced that the carbon-free trolley was driven by mechanical gravity. A 1kg weight plumb was hung on a thin wire above the car body, and two gears were attached to the thin wire below. The drop of plumb can drive the gear, Drive wheels.
“You see, the plumb is slowly falling down, generating gravitational potential energy, and the wheels are moving.†Zhou Jilie said with a smile, explaining it may be very professional. In fact, this principle is used a lot in life, such as a mechanical watch, it will rely on It is the "winding" that twists the hair and pushes the carbonless car. It is the thin line connecting the gear and plumb bob.
With the plumb bob balance principle, carbon-free trolleys can also turn left and right in accordance with the design route to avoid obstacles continuously.
Competition scene
Carbon-free car bypasses up to 31 obstacles
In the 33-metre-long track, obstacles with a diameter of 2 cm and a height of 20 cm were placed every one meter. The competition was based on the distance of the non-carbon car and the number of successful obstacles. This competition project is called "walking S-shaped track."
On two parallel tracks, carbon-free cars have to compete in pairs.
Gu Binchao, a student from the Zhejiang Institute of Mechanical and Electrical Technology, and his teammates prepared on the first track. The referee whistled and they gently let go of the car and started the game.
Gu Binchao’s car, with three small wheels, had a pole made of aluminum alloy on the balance platform. It was very safe when it started. After seven obstacles, the car deviated a bit from the midline, and the plumb bobs hanging on the rope started to shake. . While bypassing the eighth obstacle, the car hit the obstacle and stopped moving forward.
"My God! There must be something wrong with the setup." Gu Binchao touched his head and said to himself.
At the same time, on the second track, Lu Kechao from China Institute of Metrology and two teammates focused on watching the car steadily move forward. Their car has three support rods. It is particularly easy to bypass each obstacle, and finally the car wraps around. After 31 obstacles, more than any other car.
"Three support rods will make the car more stable." Zhan Wen teacher of the China Jiliang University Engineering Training Center said that during the process of walking, the balance is very important. Many cars are hit by obstacles because they lose their balance and want to make the car move forward. The layout and number of poles are very important.
In addition to "walking the S-shaped track", there is a competition program "8-shaped track detour."
The game was played on a half standard table tennis table. To bypass the two obstacles that are a certain distance apart, the car should go around in a figure-of-eight trajectory. You must not knock down obstacles, and you must not drop the table.
Carbon-free car on the road
The future may be achieved
Throughout the game, the Chinese Academy of Metrology Lu Kechao ranked first in the "S-shaped track" project. Their carbon-free trolleys took 36.57 meters and bypassed 31 obstacles.
“Since joining with a carbon-free car, I fell in love with this event and devoted all of my spare time to the analysis of competition topics, project design, and car production.†Lu Kechao said that in order to make the trajectory of the car closer to the design. The route, they are very conscientious about material selection, choose a very light plexiglass, the small line on the car choose a small diameter, toughness, not easy to break the fishing line.
Many people will question the significance of the carbonless car race. Zhou Jilie said that this competition is a comprehensive competition for college students' mechanical innovation design, manufacturing process, practical hands-on, project management and team cooperation skills. He hopes that the province’s students studying mechanical engineering majors can truly apply what they have learned to work and life. Such as car design.
“Moreover, everyone is now advocating low-carbon environmental protection. With the development of science and technology, perhaps the future of carbon-free cars can also be opened on the road.†Zhou Jilie said, “However, the key problem is how to make the gravity cycle produce Effect.†Reporter Lin Xiaoying
Reflective Fabric,Reflective Material ,Iron On Reflective Tape ,Heat Reflective Material
Reflective Safety Clothing Co., Ltd. , http://www.chinareflectivematerial.com