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In order to reflect the concept of "scientific and technological Winter Olympics", the Beijing Winter Olympics has invested a lot of scientific research in sports equipment. Professor Yang Xiaoping, the person in charge of the key technology project of the carbon fiber composite high-performance equipment of the winter project, the key project of the national key research and development plan "Winter Olympics in Science and Technology", and the deputy director of the State Key Laboratory of Organic and Inorganic Composites of Beijing University of Chemical Technology, visited the People's Ice and Snow · Ice and Snow Technology Talk program on Renmin. com, taking us to understand the development path of domestic high-performance snowmobiles.

Yang Xiaoping said that carbon fiber has the characteristics of light weight and high strength. Internationally, high-end equipment made of carbon fiber has greatly improved the performance of athletes. With the development of domestic carbon fiber Achieve high-end applications in aerospace and promote Chinese athletes at the Winter Olympics The original intention of his project is to use high-end sports equipment produced by China 。

Yang Xiaoping introduced that the development of carbon fiber snowmobile in China was a blank before 。 The development is divided into two stages. The first stage is to fill in In the blank filling stage, the breakthrough from "0" to "1" was achieved. Project team from 2019 Since November, 2006, quantitative equipment, design, materials, manufacturing and other departments and the sports department Gate, overcoming the weakness of weak foundation and the impact of COVID-19 epidemic In January 2006, the first domestic carbon fiber snowmobile was developed. The second stage is iteration To promote modernization and scale. Project team United FAW Red Flag Car The car has made some major breakthroughs in ergonomics and handling performance, It has realized the leap of carbon fiber snowmobile from usable to easy to use.

It is reported that in the leap of these technologies, the scientific research team has made breakthroughs in four aspects Technical difficulties. The first problem is the rudder How to streamline the surface body. Project team Wind tunnel experiments and results combined with aerospace Architecture design technology, realizing system optimization, and the test results are similar to international products In comparison, the drag coefficient is reduced by 8%. The second problem is what kind of material to use. Project team Made in China Aerospace level T800 carbon fiber composite, It has achieved some properties of high and low temperature resistance , impact or The compressive strength reached 350 MPa. The third problem is how to realize overall manufacturing. Project team The aerospace autoclave technology is adopted, and combined with integrated manufacturing, the test result is The defect is less than 1%, ensuring high safety. The fourth problem is the head of snowmobile athletes How to make helmets. Combining 3D printing lattice technology and carbon fiber composites, As well as personalized data of athletes' heads, personalized customized athletes' Carbon fiber helmet. Project team The test found that the helmet lost 20% weight, and the wind resistance system The number of athletes decreased significantly, and the comfort of athletes increased significantly. (Text: Yang Yubo)

Past list:

People's Ice and Snow, Ice and Snow Technology Talk: Ice and Snow Grand Jump Platform - the most breathtaking stage

People's Ice and Snow, Ice and Snow Technology Talks: Water Cube becomes Ice Cube, the world's first double Olympic stadium

People's Ice and Snow, Ice and Snow Science and Technology Talk: "Fast, protective, warm and beautiful" high-performance clothing for ice and snow sports

People's Ice and Snow, Ice and Snow Science and Technology Talk: put "scientific eyes" on ice and snow sports

People's Ice and Snow, Ice and Snow Technology: "Ice Ribbon" of Wisdom

Theme song of People's Ice and Snow, Ice and Snow Technology Talk: Cheer for Ice and Snow

People's Ice and Snow, Ice and Snow Technology Talk: Ultra HD 8K Digital Broadcasting Makes Audiovisual Experience More Shocking

People's Ice and Snow, Ice and Snow Science and Technology Talk: The Winter Olympic Torch "Flying" uses hydrogen fuel that will not extinguish at minus 40 degrees Celsius

People's Ice and Snow, Ice and Snow Science and Technology: The first application of 100 meter level weather forecasting technology in the history of the Winter Olympics

People's Ice and Snow, Ice and Snow Science and Technology Talk: "Wind Tunnel" Drag Reduction Makes Science and Technology Winter Olympics Charm Unlimited

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