Weight reduction of UAVs has always been one of the research hotspots of UAV science and technology workers all over the world. Only by reducing the structural mass of the airframe can more mass space be saved, so as to achieve the purpose of increasing fuel and payload, extending flight distance and increasing endurance. The carbon fiber composite material is light in weight, high in strength, good in fatigue resistance and acid, alkali and salt corrosion resistance, and its application in UAVs can greatly improve and improve the overall performance of UAVs.
At present, the application of carbon fiber composite materials in UAVs has increased significantly around the world, accounting for 60%-80% of the total structural mass, the weight of the fuselage is reduced by more than 25%, and the parts and components are reduced by about 60%. The application of carbon fiber composite materials plays a crucial role in the lightweight and miniaturization of UAV structures. Since the UAV does not need to consider manned people in the structural design, it can focus on the design to improve the performance of the UAV. UAVs are often used to perform special tasks such as reconnaissance, surveillance, surveying, communication, and Electronic interference. The application of carbon fiber composite materials can better improve the performance of UAVs in these aspects.
In addition to requiring light weight, the use of drones also requires high specific strength and specific stiffness. The high specific strength and specific stiffness of carbon fiber composites can greatly reduce the weight of the drone while reducing the weight. load cost. UAVs often require a flying-wing overall aerodynamic shape with a high degree of wing-body fusion, and large-area integrated molding technology is required in structural design. After simulation and simulation calculation, carbon fiber composite materials can not only be integrally formed by molding, autoclave curing or RTM branch transfer molding, etc., but also can be integrated into an automated assembly line production process to improve efficiency and greatly improve efficiency. Reduce the production cost of UAV, suitable for large-scale manufacturing of UAV fuselage structure.
Carbon fiber composite materials have good corrosion resistance and heat resistance, and they are not afraid of color in the face of acid-base salt corrosion and large temperature difference changes in time, which can meet the flight requirements of UAVs in various environments and reduce the use of Maintenance costs and extended service life. Carbon fiber composite materials can also be implanted into chips or alloy conductors to form an intelligent structural whole, which can be used for a long time in any operating situation, and will not destroy the performance of the implanted equipment, making it more reliable to perform special tasks.
The excellent characteristics of carbon fiber and good structural design provide a new solution for the development of UAV structural design, and it is also one of the best solutions at present. Therefore, the application prospect of carbon fiber composite materials in the field of UAV is bound to be It is very broad, and this will fundamentally have a huge impact on the manufacturing and structural design of UAVs.
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