"It's just, Sixth, what are we playing?" The boss of the dormitory stared at Zhou Yan curiously.
"UAV!" Zhou Yan said with a smile on his face, "We are majoring in aircraft design, so naturally we have to play with airplanes!"
It's only 2005, the drone giant Dajiang is still in the process of being conceived, and ordinary people have little impression of drones.
However, the drone Zhou Yan wants to make is not a large electric toy, but a drone platform driven by a turboprop similar to the MV-22 Osprey tilt-wing aircraft.
Of course, if Zhou Yan also used propellers, it would not be called an innovation. Therefore, he equipped the drone with four ducted fans. Ten years later, this will be a basic operation, but now, it is a complete innovation.
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After determining the basic structure, first blow the model into a simulated wind tunnel to verify the efficiency and modify the details.
Although the group of animals in the dormitory had also played with professional wind tunnel simulation software, it still felt a bit magical to watch Zhou Yan constantly use the data fed back by the software to modify the shape of the model.
"This stage is called technical verification! Next, is the time to test the technical level..."
Calibrate the technical parameters, and then determine the technical parameters of each component based on each parameter.
Among them, the most important ones are naturally the engine, ducted fan, and electronic control system that affect the control performance, which are related to the core performance of the drone.
Zhou Yan has great ambitions, so the electronic control system is relatively complex. In addition to flight control, the electronic control system must also have high-throughput data transmission capabilities.
When Zhou Yan calibrated the functions of the electronic control system, he who usually calls himself the boss of electronics enthusiasts was dumbfounded: "Lao Liu, if you build such a thing, you can even graduate from the electronics major..."
Considering that many chips are simply unavailable, Zhou Yan can only castrate the real-time video transmission function and change it to the picture transmission function.
In this way, the digital video camera originally carried in the load bay of the aircraft can be simplified into a digital camera. However, the anti-shake function still has to be done by yourself...
The next step is to produce the drawings.
There is a lot of information on small aero engines in Zhou Yan's head, but there is not much power for small turboprops, so they can only be miniaturized based on existing models.
In this way, although it needs to be redesigned, there is also a benefit: the total temperature in front of the turbine is reduced, and the temperature requirements for the materials are lowered; the overall size is reduced, and the strength requirements for the materials are also reduced.
Moreover, after redesign, the structure of the turboprop engine can also be simplified, and the oil circuit, lubrication and cooling can all be made very simple.
Of course, in order to simplify the weight, Zhou Yan basically uses high-end materials for the engine.
After three days of intensive assault, the engine design was finally completed and the simulation experiment was passed. Although the fuel efficiency was much lower than that of the original mainframe, it was still enough to ensure the design performance.
Of course, it is not easy to ensure the overall performance of the engine. At the very least, the engine's processing technology must meet the design requirements.
After the design was completed, Zhou Yan handed over the dismantled figures to the second, third, fourth and fifth sons in the dormitory, while he led the boss to walk through the architecture of the electronic control system.
"Lao Liu, let's do this thing. It seems to be very valuable?"
"That's for both military and civilian use," Zhou Yan smiled. "If equipped with a high-throughput data link, it can be monitored in real time..."
"No wonder the system is so complicated," the boss smacked his lips, "Lao Liu, your programming style seems different from that of civilian electronics..."
"Military standards for reference..." Zhou Yan glanced at the long list of chips and electronic components, "Boss, your family is engaged in electronics, so you should be able to get these things, right?"
"Almost, that's it..." The boss glanced at the fiber optic gyroscope at the end of the list, "This fiber optic gyroscope must be imported..."
“Don’t have processing capabilities at home?”
"Well," the boss blushed and nodded, "even if it can be processed, the size will be relatively large..."
"Oh," Zhou Yan nodded, "When we make the finished product, everyone will be able to see the benefits of this thing..."
"Oh, by the way, why are you so skilled at these things, Lao Liu?"
"The old man is an employee of Fengtian Aircraft Pharmaceutical Factory. He has a lot of information at home. After a long time, it will not be difficult to copy the gourd and draw the scoop..."
After electronic control, there are transmission and deceleration mechanisms, more complex digital camera servo and anti-shake mechanisms, as well as servo circuits and data interfaces.
When designing, Zhou Yan sorted out the design ideas and principles of the drone.
Although there is little chance of playing with this thing again in the future, a group of brothers in the dormitory are either engaged in electronic products, chemicals, or plastic processing. There is a high probability that they will transform in the future, and drones
The market is huge. Zhou Yan doesn’t do it himself, but he can hand over the technology to a group of brothers to do it.
After the overall framework was basically completed, Zhou Yan and the dormitory boss submitted an application to participate in the Challenger Cup.
The teachers in the department were shocked when they saw the nearly mature plan: Can students in the school really do this?
"If nothing else, even a power mechanism cannot be built by ordinary senior graduates!"
Although even the teachers couldn't believe it, after the college leaders asked a few professional questions about aero-engines, they stopped asking any more related questions...
"This electronic control system, what do you plan to do..."
The boss turned around and glanced at Zhou Yan who was calm and composed.
"We plan to do it ourselves..." A confident smile appeared on Zhou Yan's face, "When I was in high school, I have always been interested in electronic knowledge, and I also tried to make some electronic works. This drone
If the electronic control system does not involve high-speed data transmission, personal knowledge reserves should be able to handle it..."
"That's it," Dean Liu Yiming, who is also Zhou Yan's mentor in the real world, nodded with satisfaction, "Let's go back and sort out the design ideas and related design documents of the drone..."
After receiving the registration receipt, Zhou Yan packaged the drawings of the mechanical parts that needed to be processed and sent them to his father, Li Jianguo.
As soon as the email was sent, my father called me on the phone.
"You brat, you sent me some messy stuff again!"
"Comrade Li Jianguo, your son is about to participate in the Challenge Cup national competition. Some parts cannot be processed with the precision of our school, so we can only trouble you!"
"You brat, wait a minute..."
After looking at the electronic drawings on the computer for a while, Li Jianguo was shocked: Although the turboprop engine designed by his son is relatively small, if it is equipped with a suitable propeller and installed on a small sports aircraft, it should be able to
It's flying.
"Xiao Feng, do you have the overall design drawing? Send me one!"
"Okay, but you have to keep it secret..." Zhou Yan was a little helpless, "A group of brothers in the dormitory are planning to start a business with this thing!"
"That is……"
Li Jianguo was originally in a good mood, but after seeing the overall design of the aircraft, he almost cursed: "You bring such an excellent engine with you?"
"I also want to use the MV-22 Osprey solution, but this is the Challenge Cup, so I have to come up with something new..." Zhou Yan defended a little, "Besides, a small reconnaissance platform naturally has reliability and stability.
