High-performance composite materials are widely used in lightweight and multi-functional integrated design of key structural components of defense equipment and high-end industrial equipment. At present, the design and application of lightweight composite materials in China are maturing. The research and development team of JSHS Carbon Fiber Technology Group, an expert in this field, has been working diligently to improve the quality and speed of China's maglev trains.
The JSHS research and development team has been engaged in the research on the mechanical design method, manufacturing technology and performance evaluation of lightweight multifunctional materials and structures. In order to improve the quality and speed of the domestic magnetic levitation train, the research team carried out the development work of the composite suspension structure of the magnetic levitation train. "The traditional metal suspension frame structure is more complicated, has more loads, and is not very integrated. At that time, it was mainly through the application of carbon fiber composite materials to reduce the weight of the suspension frame structure and the overall manufacturing cost."
From 2016 to 2019, after several years of hard work, the JSHS team and CRRC Group developed a full carbon fiber composite material suspension frame structure, and passed the relevant test evaluation and successfully delivered it. "Under the same load-bearing condition requirements, the use of composite materials can achieve the lightweight design of the structure. However, due to the complex structure of the suspension frame itself, it is composed of many modules and has 36 service conditions. As a whole, it is a very challenging task internationally to manufacture an all-composite suspension frame structure. "
Lei Hongshuai, Technical Director of JSHS, said that China is now mature in the application of lightweight composite materials. In the past ten years, composite materials have also gradually moved towards the civilian market, such as new energy vehicle body frames, four doors and two covers, as well as skis, fishing gear, and bicycles. He believes that the use of composite materials has great prospects in many fields.