I Have a Little Black Hole

After receiving the order, I saw that the robot skillfully took two red apples and cleaned them, and then quickly separated the pulp and core with a knife, and then put the pulp into the juicer. The whole process took two minutes. Before that, the robot brought the juice with one hand and one cup.

Thank you! It tastes good! Hey, here's the cup 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.

As long as you are satisfied! I'm glad to serve you! The robot showed a happy expression and went back to wash with the cup.

Very good! That's it for now! At present, I am still very satisfied, and the overall design has also met my original requirements. You can send me the detailed design of the robot, and I will study it after I go back. If If you have any questions, I will contact you again!

I just came back, and I'm going 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 fully installed? Lei Tiantang asked.

It is estimated that it should have been completed at most years ago, mainly because a lot of equipment needs to be customized, and equipment manufacturers take time to produce, so the installation progress has been affected, but since the decoration has basically been completed here, the company's employees have already All moved to the office.

The basic construction of the factory in the first phase of the project has also been completed, but currently only the factory responsible for the production of robot projects has installed production lines, and other factories have to wait until the company has other production needs before choosing which production lines to install. Kong Yu introduced with a smile.

That's good, the old factory of the material company over there will be handed over to the security company! How is your rocket design? Lei Tiantang asked.

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

The design of the rocket only started to enter the fast lane after the company had a supercomputer, and since we recruited very few experts in the early stage, although everyone recruited almost the same, it is just learning the information provided by the boss and the team's running-in. It took a long time.

Now the overall design of the rocket can be said to have just entered the mid-stage. The overall design of the rocket has already been planned, but there are still many problems to be solved.

Since you, boss, asked us to directly target the Falcon 9 rocket, our rockets will have very high requirements in terms of general performance. After all, their rockets have been designed and modified for 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 learned the information provided by the boss,

The experience has improved a lot, but it is the first time to design such a complex and advanced rocket, and everyone's current experience is still very insufficient. It is only after the supercomputer that everyone's design ability has made a breakthrough with its help.

But our experts and researchers have never been in the field of rocket recovery before, so now this problem is the biggest problem that plagues everyone. Kong Yu explained with a smile.

Then what's the situation with them now? Lei Tiantang asked with a frown. He didn't expect the progress of the rocket design to be so slow.

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

Rockets are a one-time vehicle, and every trip to space is a process of self-sacrifice. This situation leads to a very high cost of rocket launches. Therefore, in recent years, many aerospace powers 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 winged flyback. Rockets are recovered in different ways, with different characteristics, and they have different levels of difficulty.

Among them, parachute recovery is the least difficult, has the highest technical maturity, and has the least impact on the loss of carrying capacity and design. The biggest problem in parachute recovery is that the rocket cannot land at a fixed point, and there are requirements for the landing terrain. Rockets using this recovery method can be landed at sea and on land, and can also be recovered by aerial helicopters, but if they land on land, the terrain in the rocket landing area needs to be relatively flat.

The vertically recovered rocket engine needs to be restarted when it returns, and the propellant must be reserved, which has a great loss on the rocket carrying capacity. The biggest problem with vertical recovery is that, first of all, the rocket engine needs to be started multiple times, and it also needs to have a large-scale thrust adjustment capability.

Because in the process of the rocket returning and descending, the engine needs to be started again to decelerate and adjust the landing point, and due to the problem of structural overload, the thrust of the engine needs to be adjusted to meet the overload and other needs.

Secondly, during the recovery process, high-precision control of the rocket's speed, descent attitude, and landing accuracy should be implemented. In addition, landing outriggers need to be added.

Flying back with wings uses aerodynamic force to glide and land like an airplane. Therefore, not only the taxiway is required, but the rocket also needs to increase the wings, landing gear, etc., adding extra weight, which has a certain loss in the carrying capacity of the rocket. The biggest difficulty in flying back with wings is that, first of all, structures such as wings and landing gear are added, which has a great impact on the overall design of the rocket.

Secondly, the technical requirements for return control are high, and the rocket needs to land at a fixed point on the runway. In addition, the design requirements for the entire structure layout are high, such as the most suitable part of the rocket to install the newly added wings and landing gear, which will have the least impact on the rocket as a whole.

After a comprehensive comparison of these rocket recycling methods, everyone still agreed to use the vertical recycling method to design our company's rockets. This is not that we have to be the same as the Falcon 9, but the results after comparing various data. , I think their Falcon 9 rockets have also had such considerations!

Of course, even if the recovery method of this kind of rocket is determined, there are many difficulties to be faced 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 Yuxiao explained helplessly.

Oh, it seems that there is still waiting! But the design of the rocket is really in a hurry. When designing this thing, all possible situations should be taken into account as much as possible, otherwise problems will be troublesome when it is launched!

Are there any other issues besides design issues? Lei Tiantang asked.