Military industrial hegemony

Chapter 1152 Avionics and Flight Control System

【Revision】

"Hey, Chief, it's me, I'm Jiang Chen."

"Yes, I resolutely obey and execute your orders unconditionally!"

"Yes, yes, I am always ready."

Although Jiang Chen has disappeared from the eyes of the outside world, it doesn't mean that he doesn't understand the situation outside and doesn't communicate with the outside world.In fact, Jiang Chen has been maintaining close contact and communication with all parties outside, especially at such a special moment.However, these are not what Jiang Chen should pay attention to. His main job now is to stay at ease and spend this period of time.

After months of hard work, Jiang Chen and the others' hard work finally paid off.At present, the two projects of the aviation research and development base have made great progress.Let’s talk about this light fixed-wing aircraft first. With the participation of Jiang Chen, the R&D team has already determined the design position of the entire aircraft and the blueprint of the design system. Next, we will carry out the research and design of the sub-systems based on this blueprint.This is equivalent to having an outline when writing an article. Just follow the guidance of this outline and proceed step by step.

Under the overall aircraft project research, it is actually divided into several sub-projects, which are carried out independently.For example, the first avionics system and flight control system.Regarding the research on the avionics system, it can be said that I have been in an extremely backward or blank stage.Because before this, we have never been exposed to research work in this area.Of course, this sentence is a bit arbitrary, but what is certain is that we are indeed very backward in the research work on avionics systems.For example, in the famous Yun_10 project, the avionics system is also a big problem.It is said that this avionics system has troubled the scientific research team for a long time. If the avionics system is not comprehensively simplified after learning from western technology and design, this problem may be difficult to solve for a while.Of course, that is also a basic synthesis and simplification, which is still far from the modern western avionics technology.So Jiang Chen and the others want to make breakthroughs in this area of ​​technology, especially the reasonable placement and layout of the huge and complex avionics circuits and equipment on an aircraft to ensure their normal operation.And take this as an opportunity to try to come up with a set of our own avionics system.

As for the flight control system, to put it bluntly, it is the aircraft flight control system.The system can be used to ensure the stability and maneuverability of the aircraft, improve the ability to complete tasks and flight quality, enhance flight safety and reduce the driver's burden.The classification of flight control systems has different classification methods from different perspectives.According to the control instruction issued by the pilot, the other is the automatic flight control system, the control instruction is automatically generated by the system itself.Aircraft pitch, roll, and yaw controls, increased lift and increased drag controls, manual trim, direct force control, and other controls that change the configuration of the aircraft.Such as changing the wing sweep angle, horizontal stabilizer installation angle, etc.It is an integral part of the aircraft, so it also belongs to the flight control system.The automatic flight control system is to implement automatic or semi-automatic control of the aircraft, assist the pilot to work or automatically control the response of the aircraft to counter.Such as autopilot, automatic control of engine throttle, structural mode suppression, etc.

Although the development of fighter jets in our country has lasted for decades, the flight control system still uses the technology introduced from the Soviet Union decades ago.In fact, it is mechanical transmission technology.I want to popularize it here. The flight control system is now divided into three types. The first is the mechanical transmission system. This type of system appeared on the earlier aircraft, relying on the flight cockpit control equipment to use the mechanical link transmission to connect and control the elevator and rudder. , and other control equipment, play a role in controlling the attitude of the aircraft.The second type is the fly-by-wire system, also known as the electronic control transmission system.All of these adopt electronic signal control system to control the lift and rudder of the aircraft, and play a role in controlling the attitude of the aircraft.This generation of fly-by-wire system is better than the mechanical transmission system. It is very flexible and convenient to control, and the work on the attitude of the aircraft is more accurate, so it is widely used in modern aircraft.

Although in terms of reliability, the reliability of the mechanical transmission system is higher.We all know that the simpler the structure, the smaller the probability of failure, and the easier it is to troubleshoot.Therefore, the mechanical transmission system is more reliable, but this type of control system also has its disadvantages.For example, the control is relatively difficult, the control is relatively complicated, and the flexibility is not high, the control of the aircraft attitude is not precise enough, and so on.And because of its own mechanical structure, it takes up a lot of valuable space on the aircraft, increases the weight of the body itself, and so on.

The third type of system, which is also the most cutting-edge technology, is the computer automatic control system.This type of system relies on the programs set by itself for flight control, or through human intervention, or remote intervention for flight control.This type of technology has already begun to be applied to civil airliners. The automatic flight (automatic cruise) system on this type of aircraft is this type of technology.Of course, more technologies in this area are applied to drones.Modern military drones are all unmanned flights, or controlled from a distance.However, the personnel are thousands of miles away, so they cannot know the flight attitude of the aircraft in time. Also, that is to simplify the flight control procedure.Therefore, this kind of drones mostly use this kind of computer automatic control system.The computer control system on the UAV can adjust the flight attitude of the aircraft according to the flight status of the UAV in real time, which greatly weakens the driver's control intervention on the aircraft.So that the driver of the UAV can concentrate on dealing with ground targets.

Now, what Jiang Chen asks of the research team is to develop our own aircraft electronic flight control system with all the technologies.This is a key factor for them to keep up with international advanced technology. As for the third stage, the computer automatic control system is a matter of the future. After all, the telex system is a foundation of the third stage.As long as the electronic flight control system of the aircraft is well established, it is possible to advance to a higher computer automatic flight control system.

But how difficult it is to develop a telex system of its own.For this reason, the staff team headed by Mr. Lu has already dismantled several planes, including the Gulfstream 3 and the C130.Of course, there are many other models, and even the 737 aircraft of Golem Airlines has also conducted relevant field investigations to learn from other people's design experience.But even so, the progress is still very slow. It can only be said that it is still in the process of research and development in an orderly manner.Moreover, certain results have been achieved at this stage. For example, Mr. Lu and the others have drawn up a structural blueprint of a complete fly-by-wire flight control system.The next thing to do is to analyze this blueprint, then absorb and digest it, and then create our own fly-by-wire flight control system.

(End of this chapter)