Chapter 86
That's how things settled down. From then on, his life returned to the way it was before, and it was still so peaceful.
Except for sometimes going to the courtyard to have a look at the supercomputer and maintain it, other times he goes to class on time, and after class, he stays in the dormitory by himself, holding a newly bought notebook and working on his aviation design.
The aviation development independently developed by Li Zhenhua has been proceeding in an orderly manner.
Li Zhenhua benefited a lot from the two car engines that were disassembled before, and gained a lot of knowledge from them.
Strictly speaking, the aviation engine used on the rotorcraft is not different from the car engine in concept. It is nothing more than a special enhancement to meet the requirement that the engine must go to the sky.
The aviation engine used by their rotorcraft is not something with too high technological content. It is neither a turbojet, a turbofan, nor a radial engine. It is just a piston engine.
The most suitable engine for gyroplanes is actually the one used on motorcycles. Li Zhenhua also knows this, but who told him to aim at disassembling the car engine when he had no idea about aviation engines at first.
After he understood these things, he also thought about looking for a motorcycle to disassemble with an engine, but he didn't look for it seriously, or judging from his current knowledge reserves, it was somewhat unnecessary.
His current knowledge reserve can perfectly deal with this matter, so under these premise, the design work of Hangfa is advancing smoothly.
First of all, the weight of the aviation engine used for the rotorcraft should not be too heavy, because the design curb weight of the entire rotorcraft is only about 700 kg.
After Li Zhenhua checked the information and made various assumptions, he finally determined the weight of the engine, and the total weight should not exceed [-] kilograms.
Secondly, when using the engine on an aircraft, in addition to considering the total weight of the engine, there is another indicator that is particularly important, that is, the aspect of smooth operation.
So among many engine types, horizontally opposed engines have incomparable advantages over other types.
The horizontally opposed engine is a symmetrical and stable structure in terms of layout. When the cylinders on both sides are running, they can offset the momentum generated by the engine, so that the engine runs more smoothly and stably.
It is a V-shaped, in-line engine, which is incomparable in terms of layout, and the center of gravity can also be lower. A balanced and symmetrical layout, used on a rotorcraft, can also give it a huge advantage in terms of balance.
Of course, there are also disadvantages. For example, because of the horizontal layout, the wear of the piston will be different from that of the cylinder liner during the horizontal reciprocating movement.
In addition, the horizontal oil cylinder will cause the oil to flow to the bottom, and there will also be problems in lubrication, resulting in more frequent maintenance.
But compared to these advantages, these shortcomings are not a big problem, and there is nothing perfect in the world.
So the layout of Hangfa was decided. After these were decided, Li Zhenhua first went to the school library and asked him to rummage through it, which made him find the information about the engine on his father's 750. .
With this technical prototype as a reference, Li Zhenhua's subsequent aviation development design work will be easy.
Based on the technology obtained from the disassembled two car engines and the current layout, the general design of the aviation engine was quickly designed by Li Zhenhua.
Piston-type horizontally opposed twin-turbocharged air-cooled engine, total displacement: 748cc, intake form: twin-turbocharged, engine structure: horizontally opposed, number of engine cylinders: double cylinders, gas distribution structure: four valves per cylinder ;
Engine stroke: two-stroke, cooling method: air-cooled, maximum horsepower: 126ps, maximum power: 96.7KW, maximum power speed: 9500rpm, transmission method: shaft transmission.
Although the engine designed by Li Zhenhua has not yet been trial-produced, it has been simulated and run many times with supercomputers during this period of time.
Of course, the final design was not completed in one go, and there were a lot of errors during the supercomputing simulation in the middle. As long as there was something inappropriate, Li Zhenhua would modify his design according to the errors, until the final simulation. When no error reoccurs.
It can be said that the existence of supercomputers made his design work much easier, and also saved him a lot of unnecessary trouble.
Although structurally, because of the addition of twin turbos, the intake system of the engine is much more complicated.
However, under the premise of not increasing the number of cylinders, the horsepower of the engine has been greatly enhanced, and the potential of the engine under this structure has been fully utilized.
Of course, because the engine is to be used as an aviation engine, it has been strengthened in some places. At the same time, the air-cooled structural design makes it easier to use the engine on the rotorcraft.
It can be said that the engine he designed is perfect for a rotorcraft.
The horsepower is sufficient but the weight is light, and the displacement has not yet reached the metric upgrade, so it is more fuel-efficient. The twin-turbo design can make the air intake larger and mix with the fuel more fully.
The material technology obtained from the decomposition of the two engines before also greatly helped the design work, so that Li Zhenhua would not be limited in engine design due to material reasons.
Since he and Wei Jiayang decided on the two-pronged strategy of aviation and development, it has been nearly a month now, and New Year's Day is coming soon. This is also thanks to the blessing of supercomputing, otherwise there is really no way to do it in such a short period of time. The design is done.
And Li Zhenhua is not just designing, he also considered various things during this period, such as how to obtain materials and the processing accuracy.
In short, after he completes the design of the aircraft, he only needs to hand over all his documents to any factory, and when the materials are in place, the aircraft can be manufactured.
After completing the design of this aviation engine, Li Zhenhua felt very relaxed. During this period of working on the engine, he did not leave any time for rest.
His crazy pattern made the three of Wei Jiayang very worried about him, and Shi Chang persuaded him not to push himself too hard.
Now that he finally relaxed, he sat in front of his desk in the dormitory after a long absence, turned on the Red Alert installed on his laptop and played the game.
【buiding, unit ready, low power, sir, yessir...】
The various voices of the red police were uploaded from the notebook, which may be the reason why Li Zhenhua was happy. The volume was turned up so loud that he could even hear it in the hallway of the dormitory.
Just when he was playing, the door of the dormitory was pushed open, and the three of Wei Jiayang ran in with extremely nervous expressions.
He didn't go there after entering the door, and immediately moved to Li Zhenhua's side, and said to him with a concerned face: "It's okay, if you can't get it out, you can't get it out, it's good to play games and relax."
The bad three were nervous. It was because Li Zhenhua's performance was so different from the previous month that they all thought that there was something wrong with him because of too much pressure.
Go to Sanjiang at two o'clock, and wait for Riwanha when I put it on the shelves next Friday!
(End of this chapter)
That's how things settled down. From then on, his life returned to the way it was before, and it was still so peaceful.
Except for sometimes going to the courtyard to have a look at the supercomputer and maintain it, other times he goes to class on time, and after class, he stays in the dormitory by himself, holding a newly bought notebook and working on his aviation design.
The aviation development independently developed by Li Zhenhua has been proceeding in an orderly manner.
Li Zhenhua benefited a lot from the two car engines that were disassembled before, and gained a lot of knowledge from them.
Strictly speaking, the aviation engine used on the rotorcraft is not different from the car engine in concept. It is nothing more than a special enhancement to meet the requirement that the engine must go to the sky.
The aviation engine used by their rotorcraft is not something with too high technological content. It is neither a turbojet, a turbofan, nor a radial engine. It is just a piston engine.
The most suitable engine for gyroplanes is actually the one used on motorcycles. Li Zhenhua also knows this, but who told him to aim at disassembling the car engine when he had no idea about aviation engines at first.
After he understood these things, he also thought about looking for a motorcycle to disassemble with an engine, but he didn't look for it seriously, or judging from his current knowledge reserves, it was somewhat unnecessary.
His current knowledge reserve can perfectly deal with this matter, so under these premise, the design work of Hangfa is advancing smoothly.
First of all, the weight of the aviation engine used for the rotorcraft should not be too heavy, because the design curb weight of the entire rotorcraft is only about 700 kg.
After Li Zhenhua checked the information and made various assumptions, he finally determined the weight of the engine, and the total weight should not exceed [-] kilograms.
Secondly, when using the engine on an aircraft, in addition to considering the total weight of the engine, there is another indicator that is particularly important, that is, the aspect of smooth operation.
So among many engine types, horizontally opposed engines have incomparable advantages over other types.
The horizontally opposed engine is a symmetrical and stable structure in terms of layout. When the cylinders on both sides are running, they can offset the momentum generated by the engine, so that the engine runs more smoothly and stably.
It is a V-shaped, in-line engine, which is incomparable in terms of layout, and the center of gravity can also be lower. A balanced and symmetrical layout, used on a rotorcraft, can also give it a huge advantage in terms of balance.
Of course, there are also disadvantages. For example, because of the horizontal layout, the wear of the piston will be different from that of the cylinder liner during the horizontal reciprocating movement.
In addition, the horizontal oil cylinder will cause the oil to flow to the bottom, and there will also be problems in lubrication, resulting in more frequent maintenance.
But compared to these advantages, these shortcomings are not a big problem, and there is nothing perfect in the world.
So the layout of Hangfa was decided. After these were decided, Li Zhenhua first went to the school library and asked him to rummage through it, which made him find the information about the engine on his father's 750. .
With this technical prototype as a reference, Li Zhenhua's subsequent aviation development design work will be easy.
Based on the technology obtained from the disassembled two car engines and the current layout, the general design of the aviation engine was quickly designed by Li Zhenhua.
Piston-type horizontally opposed twin-turbocharged air-cooled engine, total displacement: 748cc, intake form: twin-turbocharged, engine structure: horizontally opposed, number of engine cylinders: double cylinders, gas distribution structure: four valves per cylinder ;
Engine stroke: two-stroke, cooling method: air-cooled, maximum horsepower: 126ps, maximum power: 96.7KW, maximum power speed: 9500rpm, transmission method: shaft transmission.
Although the engine designed by Li Zhenhua has not yet been trial-produced, it has been simulated and run many times with supercomputers during this period of time.
Of course, the final design was not completed in one go, and there were a lot of errors during the supercomputing simulation in the middle. As long as there was something inappropriate, Li Zhenhua would modify his design according to the errors, until the final simulation. When no error reoccurs.
It can be said that the existence of supercomputers made his design work much easier, and also saved him a lot of unnecessary trouble.
Although structurally, because of the addition of twin turbos, the intake system of the engine is much more complicated.
However, under the premise of not increasing the number of cylinders, the horsepower of the engine has been greatly enhanced, and the potential of the engine under this structure has been fully utilized.
Of course, because the engine is to be used as an aviation engine, it has been strengthened in some places. At the same time, the air-cooled structural design makes it easier to use the engine on the rotorcraft.
It can be said that the engine he designed is perfect for a rotorcraft.
The horsepower is sufficient but the weight is light, and the displacement has not yet reached the metric upgrade, so it is more fuel-efficient. The twin-turbo design can make the air intake larger and mix with the fuel more fully.
The material technology obtained from the decomposition of the two engines before also greatly helped the design work, so that Li Zhenhua would not be limited in engine design due to material reasons.
Since he and Wei Jiayang decided on the two-pronged strategy of aviation and development, it has been nearly a month now, and New Year's Day is coming soon. This is also thanks to the blessing of supercomputing, otherwise there is really no way to do it in such a short period of time. The design is done.
And Li Zhenhua is not just designing, he also considered various things during this period, such as how to obtain materials and the processing accuracy.
In short, after he completes the design of the aircraft, he only needs to hand over all his documents to any factory, and when the materials are in place, the aircraft can be manufactured.
After completing the design of this aviation engine, Li Zhenhua felt very relaxed. During this period of working on the engine, he did not leave any time for rest.
His crazy pattern made the three of Wei Jiayang very worried about him, and Shi Chang persuaded him not to push himself too hard.
Now that he finally relaxed, he sat in front of his desk in the dormitory after a long absence, turned on the Red Alert installed on his laptop and played the game.
【buiding, unit ready, low power, sir, yessir...】
The various voices of the red police were uploaded from the notebook, which may be the reason why Li Zhenhua was happy. The volume was turned up so loud that he could even hear it in the hallway of the dormitory.
Just when he was playing, the door of the dormitory was pushed open, and the three of Wei Jiayang ran in with extremely nervous expressions.
He didn't go there after entering the door, and immediately moved to Li Zhenhua's side, and said to him with a concerned face: "It's okay, if you can't get it out, you can't get it out, it's good to play games and relax."
The bad three were nervous. It was because Li Zhenhua's performance was so different from the previous month that they all thought that there was something wrong with him because of too much pressure.
Go to Sanjiang at two o'clock, and wait for Riwanha when I put it on the shelves next Friday!
(End of this chapter)
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