Chapter 245: Rocket design issues

After receiving the order, I saw the robot skillfully took two red apples and cleaned them, and then quickly separated the pulp from the core with a knife, and then put the pulp into the juicer. The whole process took two minutes. If not, the robot will bring the juice with one hand and one cup.
"Thank you! It tastes good! Now, here is the cup!" Lei Tiantang took the juice and drank it in one breath, then smiled and handed the cup to the robot in front of him.
"You are satisfied! I am very happy to serve you!" The robot showed a happy expression and went back to wash with the cup.
"Very good! Let's do it first! So far, I am still very satisfied. The overall design has also met the requirements I mentioned at the beginning. You can send me the detailed design drawing of the robot and I will study it carefully when I return. If I have any questions, I will contact you again!
I just came back, and I have to check the situation elsewhere in the company! How is your situation here? I think the laboratory is still relatively empty, how long will it take for the equipment to be installed? "Lei Tiantang asked.
"It is estimated that it should be completed at most years ago. The main reason is that a lot of equipment needs to be customized. The equipment manufacturer needs time to produce, so the installation progress is affected. However, since the decoration has been basically completed here, the company’s employees have already All moved here.
The factory of the first phase of the project has also been basically completed, but currently only the factory responsible for the production of the robot project has installed a production line, and other factories have to wait for the company to have other production needs before choosing which production line to install. "Kong Yuxiao introduced.
"That's good, let all the old factories of the material company over there be given to the security company! How is your rocket design?" Lei Tiantang asked.
It’s been half a year. Lei Tiantang also knows that it’s impossible to build a rocket at this time, but the design work should have progressed to a certain extent. After all, he spent so much money to solicit and rocket projects. Related experts.
"The design work of the rocket started to enter the fast lane after the company had a supercomputer, and because we recruited very few experts in the early stage, although everyone was hired almost, it was just learning the information provided by the boss and the team. It took a long time.
It can be said that the overall design of the rocket has just entered the intermediate stage. The overall design of the rocket has a plan, but there are still many problems to be solved.
Since the boss, you are asking us to directly target the Falcon 9 rocket, the general performance requirements of our rocket will be very high. After all, their rockets have been designed and modified for so many years to reach the current performance. , And the level of experts and researchers is much higher than the experts we recruited.
So although everyone has learned the information provided by the boss, and the experience has been improved a lot, but for the first time to design such a complex and advanced rocket, everyone’s current experience is still very insufficient, and it is also everyone’s design after having a supercomputer. The ability has a breakthrough with its help.
But our experts and researchers have never been in contact with the field of rocket recovery before, so now this problem is the biggest problem that bothers everyone. Kong Yu laughed and explained.
"Then what are they doing now?" Lei Tiantang frowned and asked. He didn't expect the rocket design progress to be so slow.
"The laboratory has just discussed and approved the rocket recovery plan, and is preparing for specific design work. Let me briefly introduce what they told me.
The rocket is a one-time vehicle. Every trip to space is a process of self-sacrifice. This situation has led to a very high cost of rocket launches. Therefore, in recent years, many major aerospace countries have been racing to study rocket recovery technology so that rockets can be reused, which can reduce costs. However, rocket recovery also has many difficulties to overcome.
At present, there are three mainstream methods of rocket recovery, namely, parachute recovery, vertical return, and flyback with wings. The recovery methods and characteristics of rockets are different, and their difficulty is also different.
Among them, parachute recovery has the lowest difficulty, the highest technological maturity, and the least impact on carrying capacity loss and design. The biggest problem with parachute recovery is that the rocket cannot land at a fixed point, and there are requirements on the terrain for landing. Rockets using this recovery method can be landed on the sea and land, and can also be recovered by aerial helicopters, but if they land on land, the rocket landing area needs to be relatively flat.
The vertically recovered rocket engine needs to be restarted when it returns, and propellant must be reserved, which has a great loss in the rocket carrying capacity. The biggest problem with vertical recovery is that, first of all, the rocket engine has to be started multiple times, and it also needs to have a wide range of thrust adjustment capabilities.
Because the rocket needs to start again to decelerate and adjust the landing point during the return of the rocket, and because of the structural overload problem, the thrust of the engine needs to be adjusted to meet the needs of overload.
Secondly, during the recovery process, high-precision control of the rocket's speed, descent attitude, and landing accuracy must be implemented. In addition, landing legs need to be added.
Flying back with wings uses aerodynamics to glide and land like an airplane. Therefore, not only need to taxi the runway, the rocket also needs to add wings, landing gear, etc., adding extra weight, which will cause a certain loss of the rocket carrying capacity~EbookFREE.me~ The biggest difficulty of flying back with wings is that, first of all, the aircraft is added. Structures such as wings and landing gear have a greater impact on the overall design of the rocket.
Secondly, the return control technology requires high, and the rocket will eventually need to land on the runway at a fixed point; in addition, the overall structural layout design requirements are high, such as the new wings, landing gear, etc., which part of the rocket is most suitable for installation, and has the least impact on the overall rocket.
After comprehensively comparing these methods of rocket recovery, everyone still agreed to design our company’s rocket using a vertical recovery method. This is not that we have to be the same as Falcon 9, but the result of comparison based on various data. , I think their Falcon 9 rockets also have such considerations!
Of course, even if this kind of rocket recovery method is determined, there are many difficulties in the design. The design of the rocket engine, the design of the rocket recovery platform, etc., everyone has no experience in this area, so they can only Come step by step! Kong Yu explained helplessly with a smile.
"Oh, there seems to be waiting! But the design of the rocket is really not anxious. When designing this thing, all possible situations must be taken into account as much as possible, otherwise it will be troublesome when it launches!
Are there any other issues besides design issues? "Lei Tiantang asked.