The hottest carbon fiber composite material will h

2022-08-03
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Carbon fiber composites will have great development potential in the field of express UAV

with the continuous increase of comprehensive costs such as manpower, domestic e-commerce giants have also begun to test the UAV Express technology. The UAV pays attention to lightweight design, and carbon fiber is its preferred material

according to the analysis of people in the logistics industry, in the next three to five years, the labor and transportation costs of logistics will increase by 20% - 50%. In this case, the UAV logistics system will have great application value. The preliminary idea is to combine the express UAV with the automatic base station. In the whole process of freight transportation, the automatic base station is responsible for goods picking, battery replacement and maintenance, while the UAV is responsible for outward transportation and can work continuously for 24 hours. In terms of cost, for the same express, the cost of delivery by the courier is about 5 yuan, while the cost of UAV express can be saved by more than half, and the efficiency can be improved by 70%

in 2017, a sea crossing UAV express group composed of 18 UAVs was tested and flew in a triangular formation in the air. Facing the level 67 gust, it was loaded with six boxes of goods. As a result, it took only 9 minutes to successfully cross the Strait, successfully providing diversified logistics services for Taobao

the domestic e-commerce industry ranks among the top in the world. The annual e-commerce sales and the number of packages are equivalent to people. Therefore, in order to solve the problem of distribution at the last logistics station, the domestic leading e-commerce companies have tried the UAV Express technology one after another

of course, there are still many problems in the specific practical application of the express UAV, such as security. This is a difficult problem in the design of the UAV. The Federal Institute of technology in Lausanne has launched a new UAV with a flight distance of up to 2 kilometers at a time, which is specially used to deliver packages less than 500 grams. This UAV can automatically avoid obstacles and fly to uneven or even steep destinations

its biggest innovation is that it has its own protective cage, which is made of carbon fiber material. During the flight, the entire UAV and package are in the protective cage. If there is any accident on the way, the protective cage can play a good role in protection; It can also protect the recipient from being hurt by the rotating propeller, because the entire propeller structure is inside the protective cage, and the built-in circuit will ensure that the protective cage will not be retracted until the propeller stops rotating. Structure reference fold of protective cage "Due to the conceptual design of carbon dioxide stabilized paper, it can be folded and quickly stowed in one step. The volume of the stowed UAV will be reduced by 92% and can be easily put into an ordinary backpack.

although the UAV mentioned above is safe, its load is too small to meet the needs of most express delivery. It can transport goods within 10kg and its flight height is between 300m and 500m, which is the requirement of domestic express delivery for UAVs Basic requirements

in addition to safety and load capacity, there is also a problem of endurance capacity. At present, the UAVs used for logistics are divided into oil and electricity, and the electric UAV is still used more. First of all, the price of electric UAV is relatively cheap, ranging from thousands to tens of thousands of yuan. The price of fuel UAV is tens of thousands or even hundreds of thousands of yuan in China, and the large-scale utilization has just begun. At the same time, the fuel UAV is large and inflexible, and is rarely used in the logistics field. From the perspective of the electric UAV currently being popularized and applied, it can fly about 10 kilometers in 10 minutes after an average charge. In other words, considering the return journey, the transportation range of the electric UAV is within 5km. As a high-frequency express drone, this endurance capability is far from enough. You can't just send a package and charge it before continuing to use it

to solve these problems, UAV manufacturers, on the one hand, hope for higher quality battery systems through optimized design and, on the other hand, rely on greater use of lightweight UAV manufacturing materials. Using lightweight materials is equivalent to directly reducing the self weight of the UAV, which can make more space for the load or battery

the carbon fiber composite shell customized by domestic UAV parts suppliers for customers, the whole shell is less than 800g, and the weight reduction effect is very obvious. In addition to the casing, carbon fiber composite materials can be used for the boom, propeller, main engine board, etc. The surrounding protective cage of the UAV developed by the Federal Institute of technology in Lausanne also uses carbon fiber composite material. This highly lightweight material can avoid increasing the carrying burden of the UAV and provide higher strength and toughness

although the application space of express UAV is still very limited at this stage due to many factors such as airspace control and mature technology, it is believed that with the rapid development of UAV technology and the increasing demand for molding products with complex shape, accurate size and metal or non-metal inserts in the market, the application of carbon fiber composites in express UAV will have great development potential, Maybe this year's "double 11", your express will be delivered to you by the London Metal Exchange, the world's largest futures and options market for base metals and other metals

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