I have a little black hole

After receiving the order, I saw that the robot skillfully cleaned two red apples, then quickly separated the pulp and the core with a knife, and then put the pulp in the juicer for two minutes. If not, the robot brought the juice in one cup and one hand.

"Thank you! Good taste! Now, the cup is for you!" Lei Tiantang took the juice and drank it in one breath, then smiled and handed the cup to the robot in front of him.

"Just be satisfied! I'm glad to serve you!" The robot showed a happy expression and took the cup back to wash.

"Very good! Let's do this first! At present, I am still very satisfied. The overall design has also met the requirements I mentioned at the beginning. You send me the detailed design of the robot. I will study it after I go back. I will contact you if you have any questions!

I just came back, and I have to check the situation elsewhere in the company!How is your situation?I think the laboratory is still empty. How long will it take for the equipment to be installed?Lei Tiantang asked.

"It is estimated that it should be completed by most years ago, mainly because a lot of equipment needs to be customized, and the production of equipment manufacturers takes time, so the installation progress has been affected, but because the decoration has basically been completed here, the employees of the company have already All moved to work.

The construction of the first phase of the factory has also been basically completed, but currently only the factory responsible for the production of robot projects has installed production lines. 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 the old factory of the material company over there be all to the security company! How is your rocket design?" Lei Tiantang asked.

It has been half a year, Lei Tiantang also knew that it was impossible to make rockets at this time, but the design work should have some progress. After all, he spent so much money to recruit and rocket projects. Relevant experts.

"The design work of the rocket is that the company has only entered the fast lane after the company has a supercomputer, and because we have recruited very few experts in the early stage, although everyone is recruited later, but only to learn the information provided by the boss and the team. It took a long time.

It can be said that the overall design work of the rocket has just entered the mid-term stage. The overall design of the rocket already has a plan, but there are still many problems to be solved.

Because the boss you are asking us to directly target the Falcon 9 rocket, our rockets will have very high requirements in terms of performance. After all, their rockets have been designed and modified after so many years to achieve their current performance. And the level of experts and researchers is much higher than the experts we recruited.

So although everyone has also studied the information provided by the boss and the experience has been improved a lot, but the first time to design such a complex and advanced rocket, everyone’s experience is still very insufficient. It is also after everyone has a supercomputer. Only with its help did the ability break through.

But our experts and researchers have never been in the field of rocket recycling before, so now this problem is the biggest problem that puzzles everyone."Kong Yuxiao explained.

"So what is the situation now?" Lei Tiantang asked with a frown, he didn't expect the rocket design to progress so slowly.

"The laboratory has just discussed the plan for rocket recovery, and is preparing for specific design work. Let me briefly introduce what they told me.

The rocket was a one-time delivery vehicle. Every trip to space was a self-sacrifice process.This situation leads to a very high cost of rocket launches, so in recent years, many major aerospace nations are competing to study rocket recovery technology so that the rocket can be reused, which can reduce costs.However, there are many difficulties to be overcome in rocket recovery.

There are currently three main ways of rocket recovery, namely parachute recovery, vertical return, and winged return.The recovery methods of rockets are different, the characteristics are different, and their difficulty is also different.

Among them, the parachute recovery is the least difficult, the technology is the most mature, and has the least impact on the carrying capacity loss and design.The biggest problem with parachute recovery is that the rocket cannot land at a fixed point, and requires terrain for landing.Rockets using this recovery method can be landed on the sea and land, and can also be recovered by air helicopters, but if they land on land, the terrain of the rocket landing area needs to be relatively flat.

The vertically recovered rocket engine needs to be restarted when returning, and propellant must be reserved, which has a great loss on the rocket's carrying capacity.The biggest problem with vertical recovery is that first, the rocket engine needs 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 slow down and adjust the landing point during the return of the rocket, and due to structural overload problems, the thrust of the engine needs to be adjusted to meet the needs of overload and so on.

Secondly, during the recovery process, high-precision control of the rocket's speed, descent attitude, landing accuracy, etc. must be implemented.In addition, the landing leg needs to be added.

Winged back is using aerodynamics, gliding and landing like an airplane.Therefore, not only the taxiway needs to be taxied, but the rocket also needs to add wings, landing gear, etc. to add extra weight, which has a certain loss on the rocket's carrying capacity.The biggest difficulty in flying back with wings is that, first of all, structures such as wings and landing gear have been added, which has 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 design requirements for the entire structure layout are high. For example, the newly added wings, landing gear, etc. are most suitable for installation on the rocket, and the overall impact on the rocket is minimal.

After a comprehensive comparison of these types of rocket recovery methods, everyone still agreed to design our company's rockets by vertical recovery methods. This is not because we have to be the same as Falcon 9, but based on the results of various data comparisons. , I think their Falcon 9 rocket had such considerations!

Of course, even if this kind of rocket recovery method is determined, there are many difficulties in design. The design of rocket engines, the design of rocket recovery platforms, etc., everyone has no experience in this area, so only Come step by step!"Kong Yu explained helplessly.

"Alas, there seems to be waiting! But the design of the rocket is indeed in a hurry. When designing this thing, we must take into account all possible situations, otherwise it will be troublesome when there is a problem when launching!

Is there any other problem besides the design problem?Lei Tiantang asked.