After listening to Zhou Xiangming's explanation, Wu Hao did not comment, but asked him: "How long does the entire transportation process take?"
Seeing Wu Hao's inquiry, Zhou Xiangming immediately responded: "It is about more than 1,400 kilometers from our Zhihai Lunar Surface Scientific Research Station to the core of the golden meteorite.
Based on the calculation based on the traveling speed of our previous Wangshu-1 patrol rover, it can probably travel thirty to forty kilometers in one hour. Excluding their daily charging time, they can travel for about twelve hours, which translates to about three hundred to four hundred kilometers.
It’s 1,400 kilometers and it will take us about four to five days to arrive. However, this is in an unloaded state. If it is fully loaded, the entire traveling speed may be greatly reduced. It can intelligently travel about half the distance every day, which is about two hundred kilometers. In this case, shipping back may take a week.
In addition, after we arrived, we had to take out the core of the meteorite and load it into the car. The whole process also took time. There are also some accidents and problems that may arise during our journey.
So if you add it all up, it will take about fourteen days, which can be completed within one lunar day. "
After hearing Zhou Xiangming's answer, Wu Hao and everyone present nodded. If it can be controlled to be completed within one lunar revolution, it will not take long and is completely acceptable.
"I have a question." Yang Fan asked Zhou Xiangming and others.
“We know that whether it is the Wangshu-2 exploration test vehicle, the multi-functional engineering robot, or the engineering transport vehicle you will launch next year, they all rely on electric power.
Among them, the Wangshu-2 exploration experimental vehicle has its own solar panels and can charge and supply power independently. However, there are no solar panels on the multifunctional engineering robots these days, including the engineering transport vehicles you are about to launch.
Although they have built-in battery modules, they still need to be charged regularly. The capacity of their battery modules cannot support them to complete the entire mission cycle. How do you solve the charging problem of these two vehicles while traveling? "
Yes, it's a big problem, but it's not unsolvable. Zhou Xiangming nodded and said: “These problems can be solved by using flexible solar photovoltaic sail panels.
This flexible solar power generation material is very light and does not take up space. It turns into a scroll when folded and a large canvas when unfolded. We can use it to charge the two vehicles while they are traveling. "
Hearing Zhou Xiangming's answer, everyone nodded in approval. It seems that they have indeed been preparing this plan for a long time and have prepared all aspects.
Wu Hao showed a satisfied smile, then waved to several people and said, "Tell me, how do you transport such a large meteorite core back to Earth.
You said before that such a large meteorite core cannot be installed in our landing ascender. Can it be accommodated if it is transported back to the Zhihai Lunar Surface Scientific Research Station? "
Seeing Wu Hao continue to ask, Yu Chengwu smiled and replied: "Since it can't be installed inside, then just hit it outside. This will make it easier to transport."
Seeing everyone's curious looks, Yu Chengwu smiled and slid his transparent folding tablet, then pointed at the icons on the big screen and said to Wu Hao: "That's right, considering the several relays during the transportation back. , and the problem that the gold meteorite star core cannot be divided, so we decided not to load it into the landing ascender, but to put it outside.
Using our relevant tools at the research station, we can use some space films and space composite materials to wrap the entire star core. The purpose of this is to prevent it from being contaminated during space transportation, as well as to prevent it from being contaminated during return to the atmosphere, in the atmosphere and at the landing site.
In this way, we can obtain relatively primitive gold meteorite core data information, which is very important for us to study the formation of this asteroid core.
In addition, this layer of protective material can also greatly reduce the burning of the gold meteorite core in the atmosphere, thereby providing some protection to it. "
At this point, Yu Chengwu changed the picture and said: "After the package is completed, we will use some materials that have been transported to the moon to build a frame outside the gold meteorite core, and use the frame to fix the gold meteorite core inside.
In this way, we only need to transport the frame to transport the entire star core. This frame structure is also conducive to our entire transportation and relay transfer process. "
This frame structure is shown in the picture, which is actually putting the gold meteorite core into a cube frame made of alloy materials. Inside the frame, alloy steel bars, steel cables and other materials are used to fix the entire meteorite core, thereby confining it within this cube frame.
There are many vacancies and connecting mechanisms on the cube frame, which are convenient for transportation and fixation.
Yu Chengwu continued: "Next year we will launch an experimental spacecraft to focus on testing the reliability of our lunar landing, lift-off and return technology. Originally, we only planned to collect the data collected by our previous Wangshu-1 patrol rover. The lunar soil samples received as well as some lunar rock and lunar soil samples near Zhihai were transported back to Earth.
But then I thought about it, and since there are already so many lunar soil samples, there is no need to transport so many lunar rocks and lunar soil. It's enough to transport this thing back for experiments. If you transport too much, it will be no different from the soil on the earth.
So we plan to just transport this golden meteorite core back. Its scientific research value is higher and its economic value is also very considerable. Why not do it.
Therefore, we conducted relevant research and public relations on how to transport this gold meteorite core back, and finally came up with such a transportation plan. "
At this point, Yu Chengwu continued to change pictures and said: "To be honest, how to fix such a large and heavy gold meteorite core on the ascender is a difficult problem.
Because it will directly change the center of gravity of the entire ascender structure, causing the entire launch ascent process to fail.
Originally, its best fixing position should be at the top of the ascender. It only needs to be fixed for a long time to avoid the problem of center deviation, so as to smoothly ascend and dock with the orbiter on the orbit.
However, the top of the ascender is usually a docking port to facilitate docking with the orbiting spacecraft in orbit. But if it were placed on top, wouldn't the docking interface at the top be blocked? How could it be docked with the orbiter? "
(End of chapter)
