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In contrast, conventional carrier electromagnetic catapult systems typically take more than three seconds to accelerate a 13-ton fighter jet to 66 meters per second.
“The new catapult system has a small footprint, simple structure, and light weight, and does not require a complex power supply system,” the team led by Ye Lezhi, an associate professor in the School of Mechanical and Energy Engineering at Beijing Institute of Technology, wrote. , in a peer-reviewed paper published in the Chinese academic journal Acta Armamentarii on February 27.
The journal, run by the China Weapons Association, is one of the most influential academic journals in China’s defense technology field, covering defense, dual-use technology, and interdisciplinary research projects in the military and civilian sectors.
New sighting of a J-35 advancing on the deck of the Chinese aircraft carrier Liaoning
New sighting of a J-35 advancing on the deck of the Chinese aircraft carrier Liaoning
The operating principle of the device designed by Ye’s team is similar. Before the catapult launches, a high-power motor drives a heavy flywheel that rotates at high speed. When the plane is secured to the catapult shuttle, the flywheel transfers kinetic energy to the hoist wheels, which then pull the shuttle through steel cables to apply force to the aircraft’s landing gear and accelerate the aircraft to takeoff speed.
The flywheel and hoisting wheel never touch. Instead, an eddy current clutch generates an electromagnetic force that holds them together.
To stop the plane, simply reverse the rotation of the flywheel, no additional gear is required.
According to their paper, Ye’s team built a prototype and test results confirmed the feasibility of the design.
Mr. Ye is a “science and technology star” supported by the Beijing municipal government. He holds important roles as deputy secretary general of China Electronic Special Equipment Industry Association and expert in national advanced technology forecasting for the Ministry of Science and Technology.
His team is deeply committed to working with China’s manufacturing industry, including the automotive industry.
In recent years, senior manufacturing experts have entered the ranks of China’s defense technology research and development. The Chinese government’s push for military-civilian integration, once hampered by the technological limitations of civilian products, is now bearing fruit.
China boasts the world’s largest and most complete manufacturing chain, with a growing number of products, including electric vehicles, outpacing Western countries in technological advancement.
Some Chinese military experts believe that the rapid iteration and large-scale application of these new technologies will not only revolutionize the automobile industry, but also have a significant impact on the military.
Currently, aircraft carrier electromagnetic catapult systems use long, straight trajectories to accelerate aircraft, with numerous electromagnetic coils placed around the trajectories to generate thrust and provide continuous thrust as the aircraft passes. accelerate to
The United States, a pioneer in this technology, has equipped its state-of-the-art Gerald Ford-class aircraft carriers with four such electromagnetic catapults.
According to data released last year by the U.S. Department of Defense, the catapult system experiences a major maintenance problem every 614 takeoffs, in stark contrast to the U.S. Navy’s standard of 4,000 takeoffs.
Of further concern is the failure rate of the shutdown system, with one system failure occurring for every 46 landings, meaning that a significant proportion of fighters launched from carriers may not be able to return safely. It suggests.
02:17
China airs footage of Fujian aircraft carrier equipped with advanced catapult launch system
China airs footage of Fujian aircraft carrier equipped with advanced catapult launch system
U.S. military officials are increasingly concerned that the decline in U.S. manufacturing will have a negative impact on advances in military technology and equipment.
According to the US Navy, China’s shipbuilding capacity now dwarfs that of the US, which is 200 times greater.
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