Super technology leader

It's extremely difficult for a lunar rover to reach the Moon, and it's even more difficult to drive on the Moon.

With the slightest carelessness, the lunar rover could hard-land on the Moon along with the lander, and then be smashed into pieces.

Here, I'd like to manually @ India's Chandrayaan-2.

Even if the landing is successful, the lunar rover may malfunction during use.

Like Tianxia's original "Yutu-1" lunar rover, as Tianxia's first lunar rover, its design weight reached 140 kilograms, which is considered a small and exquisite gadget in spacecraft, so many people also call it "Little Rabbit."

In the beginning, it worked very normally and completed many experimental tasks, but before entering the second lunar night hibernation, affected by the complex lunar surface environment, the lunar rover's mechanism control experienced an abnormality.

After that, its scientific research equipment could be successfully awakened and work normally, but it could not drive the wheels forward.

Yutu-1 was unable to move after running for more than a month. Speaking of this failure, scientists recalled that there may be two aspects of the design that were not in place.

First, Tianxia's aerospace department has an understanding of the lunar environment, but the understanding is not in place, and some designs are not reasonable.

Second, in order to compress weight, the preparation for possible failure handling measures is also not in place.

Most people believe that because the lunar rover should be light and small, it is designed with high integration, and the corresponding parts have no backup. The control circuits of all wheel drive mechanisms are on one board. It is possible that the power supply of a drive circuit has a short circuit, which caused Yutu-1 to lose its ability to move.

According to ground simulation tests and speculation, due to light miniaturization, the wires are very thin. It is possible that when it drove over a large rock during its walking process, the skin of a wire was cut by the rock, and the wire short-circuited with the lunar rover support body. This is the greatest possibility.

Since Yutu-1 is on the lunar surface, it is difficult to actually verify and cannot be repaired, so it can only become a lesson. This point should be fully considered when designing similar equipment in the future, and effective measures should be taken.

So there was the later Yutu-2 lunar rover.

This second Little Rabbit has been working since it was launched and landed, and it hasn't broken down until now. It is a real model worker.

I said before that if the lunar rover breaks down on the Moon, there is no way to repair it. That was when no one landed on the Moon. When humans landed on the Moon, they actually repaired cars on the Moon.

At that time, the American manned moon landing sent a manned lunar rover to the moon to serve as a means of transportation for astronauts.

This "Apollo" lunar rover weighs about 210 kilograms, has a simple structure, and the whole vehicle is similar to the chassis of a normal vehicle. It can also be folded. After unfolding, it is 3 meters long, has a wheelbase of 2.3 meters, and is 1.1 meters high. It has 4 wheels.

Each wheel is driven by an engine, powered by a battery, and the tires can maintain elasticity at a low temperature of -100°C.

The power supply uses a silver-zinc potassium hydroxide disposable battery, the driving speed is 10-12 kilometers/hour, and it can carry an effective load of about 490 kilograms.

So this kind of lunar rover is disposable and cannot be charged. The farthest record is 35.89 kilometers. If you let go and speed, the speed will not be limited to 12 kilometers per hour. Someone has driven at a speed of 17 kilometers per hour.

There are 2 foldable seats in parallel in the front, each seat has adjustable pedals and seat belts. A large mesh dish antenna is installed on the mast at the front of the car. Astronauts control the rover through a T-shaped manual controller located between the two seats.

The front of the handle has a control and display module that displays current speed, direction, power, and temperature conditions.

The Apollo 17 lunar rover, oh, that is, the car that sped up to 17 kilometers per hour, its front wheel fender was knocked off by the astronauts. Due to the low gravity, without the obstruction of the fender, the wheel can bring up two-meter-high dust when it turns, which greatly affects the driver's vision.

The astronauts did not have professional tools and spare fenders, and could not repair the vehicle. They could only use tape to stick the damaged fender in its original position, but when repairing on the lunar surface, the car was covered with lunar dust. These lunar dust would destroy the stickiness of the tape, and it would fall off after a while.

Later, the scientists on the ground asked the astronauts to find a few pieces of paper in the manned module, and then use tape in the manned module to stick them into the shape of a fender.

There is very little lunar dust in the manned module, so the tape is very strong, and then they used clamps to fix the paper fender on the original fender.

You have to say, it's really easy to use.

It's like this to repair a fender a little bit. It should be more difficult to modify the lunar rover on the moon, but in fact it is not difficult, at least it is not difficult for aerospace mechanical engineers with complete equipment.

The parts are ready-made, and the scientists of the Pathfinder designed and manufactured them according to the actual situation. Tong Anfu only needs to use special tools to install those parts.

Even not only he can do it himself, but under his on-site command, the other three astronauts can also complete the installation.

The modification of the lunar rover by Pathfinder is also very simple. Although the weight of the Pathfinder lunar rover is greater than that of the previous American manned lunar rover, the length and width are not that long, so there is no need for two-person seats, and it is directly determined as a one-person "standing position".

Sitting is not allowed, because the newly modified driving position is in the back, so in order to increase the field of vision, the astronauts are not allowed to sit down, but a standing bracket is added. There are hooks behind the bracket, which can hang other vehicles or simple carts.

The astronaut stands in the back, and the control handle is installed at hand, connecting to the core control system of the lunar rover.

To install the battery pack, the amateur battery pack roughly installed by the robotic arm must be removed, and then replaced with a specially manufactured new battery pack, which can make the lunar rover go further.

"Let's start. Tang has already taught us all the steps in the phantom space. You should still remember. If there is anything you don't understand or there is a gap with your memory, you can ask me."

The latest novel is first published on 6 9 books!

Aerospace mechanical engineer Tong Anfu said while holding the tools.

"Okay, Anfu, let's start," Cheng Dong said.

Because there is an example of American moon landing astronauts repairing lunar rovers, Pathfinder has prepared portable lunar dust removal devices for them. It has an electromagnetic field and can blow air, which can easily remove lunar dust adhering to key equipment and then perform precise installation.

The installation went very smoothly, so smoothly that they had time to chat.

Of course, it's not pure nonsense. The things they talked about are related to what they are doing now.

"I have a feeling that Tang of Pathfinder knows everything. I don't know if it's my illusion, but I really feel that he knows everything. Just talking about the lunar survival precautions he taught us, it feels like he has lived on the moon for a long time."

"I think so too. To say his technological strength, everyone knows how powerful he is, but he also knows a lot about the moon, and it's not just the scholar-type understanding, it's the kind of hands-on understanding, it feels too magical."

"Well, maybe this is a genius. Tang will definitely be famous in history in the future, just like those super celebrities we learned about in history books."

Just like that, they modified two cars in less than an hour.

Yes, two are enough for now. After all, there are only four of them in total. It is impossible for all four of them to leave the base and enter the permanently shadowed area.

With two cars, let Lin Yang and geologist Peng Zizhen bring the ice back first. Cheng Dong and Anfu continue to modify two cars, and then load sandbags.

If everything is normal in finding ice, their sandcastle progress will not be slow. If there is danger there, it will not be that all four people are in danger. They can also go to rescue.

After assigning the tasks, attach simple carts to the two modified cars, one for tools and one for sealed storage boxes, and then set off one after the other.

Heading to the permanent dark area.

At the same time on Earth, the American Aerospace Administration has been observing the situation of the Moon Palace base through lunar satellites.

There is no way, Tianxia took the lead in establishing a base on the moon. They don't understand the situation inside, they are very anxious!

Chapter 2 11:30