Military Technology

Speaking of this, Yu Chengwu continued to change the picture and said: "To be honest, how to fix such a large and heavy golden meteorite core on the ascender is a difficult problem.

Because it will directly change the center of gravity of the entire ascender structure, thus causing the failure of the entire launch ascent process.

Originally, its best fixed 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 track.

However, the top of the ascender is generally a docking port, which facilitates docking with orbiting spacecraft. But if it is placed on it, wouldn't the docking port on the top be blocked? How can it dock with the orbiter? "

"It doesn't work on the bottom, because the rocket nozzle is under the ascender, and such a large golden meteorite core cannot be placed, otherwise it will easily block the nozzle of the rocket engine and affect the take-off.

As for the four weeks, it is even worse, because this will seriously affect the center of gravity of the entire ascender. Even if the gravity of the moon is very small, it will also affect the stability of the ascender during the entire launch process, resulting in failure of the ascent.

So it can only be placed above or below, so we need to modify the entire ascender so that it can meet our transportation needs.

After studying several options, we think that the meteorite core should be placed under the ascender. As for the rocket engine, it should be moved to the side. "

In the picture, you can see the structure of the entire ascender, which is basically similar to the structure of the lander of the lunar cargo transfer spacecraft. The rocket engine is not placed on the ground, but placed seven times, like an extended arm.

In that way, a huge space is formed between the upper landing gears of the descender. As for that space, both good and evil are used to fix the cube frame with the golden meteorite core, thus forming a whole.

Before reaching the earth orbit, the spacecraft assembly will gradually retreat into the landing orbit. First, the spacecraft will retreat and separate from the lander, and the return capsule of the spacecraft will bring those lunar soil samples to land on the earth according to the prescribed orbit.

You have set up very few hole positions under the landing frame, and those hole positions cannot correspond to the hole positions under the cube frame that you fix the golden meteorite core, so you cannot use bolts to retreat and fix it.

In addition, you have also installed several large rocket engines on the opposite side of the engine of the ascender. Before docking, those rocket engines still cannot provide the extra thrust for the entire spacecraft assembly, and cannot compensate for the loss of the ascender at all. weight. "

Seeing Yang Fan's approval, Yu Chengwu's morale was low, and he lowered his voice and said: "Before docking with the spaceship, the robotic arm in the return cabin of the spaceship will automatically grab those lunar soil samples in the lifter cabin, and then Store them in the return capsule of the spaceship.

Yang Fan nodded and said: "From a technical point of view, there is no problem. However, there are still many risks and certainty factors in the whole process. Your request is that they must take those risks and certainty factors into account, and Come up with a corresponding response plan.

Before the inner cube frame of the golden meteorite core and the bottom of the ascender retreated and fixed, it also retreated and fixed with the umbrella bag at the same time. In that case, the golden meteorite core would not be able to land with the parachute bag.

So under normal circumstances, all lunar exploration and return missions have basically abandoned the ascender.

Hearing Yu Chengwu's answer, Wei Yan nodded slightly, then raised his hand and said, "Continue."

It only needs to slow down the golden meteorite core during its landing in the small atmosphere, and let it fall too slowly. In that case, you will not be able to obtain the golden meteorite star core under the earth. "

In this way, the entire golden meteorite core is firmly fixed under the descender, so that it will be displaced and even fall off. In that way, you will use the ascender to transport the golden meteorite core down the orbit around the moon, and then make retrograde docking with the orbiter under the orbit around the moon, and return to the earth together.

Although the ascender does not have a certain mass, the gravitational force of the moon is relatively strong and the gravitational force of the earth is relatively weak. Therefore, the entire return process does not actually require too little thrust, but also consumes too little fuel.

You must know that the entire descender is weightless. The heavier the weight, the smaller the thrust required, so the less fuel to carry, the lower the launch cost.

Hehe, it is sufficient and dare to mention that matter to you. What do you think, will it work? Yu Chengwu asked with a smile.

Seeing Zhang Jun, Wu Hao and others nodding, Yang Fan also smiled and said: "It seems that they are well prepared."

Facing Wu Hao's question, UU Reading www.uukanshu.com Wei Yanxiong nodded and replied: "Yes, you plan to transport it back to Earth together with the ascender.

Hearing Yu Chengwu's introduction, everyone present nodded involuntarily. It sounds like that plan is indeed the most realistic and feasible plan, which can make minimal use of existing resources and control the cost within a very reasonable range.

Because it is a golden meteorite core, as long as it is smashed well, there is actually no problem with the slow speed, so you cannot control the size and type of umbrella bags.

First of all, just let it fall freely, and it will explode directly when it hits the ground, forming a crater. Let's say that such a small meteorite hits directly with deceleration, I am afraid everyone will be afraid.

Wu Hao’s question is not unreasonable. You must know that in order to reduce weight, the Meidu ascender is to transfer the external materials to the outside of the spacecraft before docking around the spacecraft. In this way, the descender loses its value and cannot be separated immediately. Then let it crash under the moon. To orbit the spacecraft, it is enough to transport the materials outside the transfer pot back to the earth.

The power of a meteorite falling directly on it with less than one ton is probably less than that of a missile.

So let it hit it directly? Zhang Jun opened his mouth and asked Yu Chengwu. I had thought that the transportation process would be so complicated and straightforward, even rough.

As for Yu Chengwu, he shook his head and said with a smile: "Yes, there is actually not a special umbrella bag that was separated from the golden meteorite core, and it has actually been hidden at the bottom of the ascender.

He means to return to Earth together with the descender? Wei Yan interrupted Yu Chengwu's words and questioned.

The descender uses its remaining fuel to transport the golden meteorite core to the scheduled landing orbit, and then retreats and separates from the golden meteorite core. "

Everything is planned and moved ahead, and if you move, you will succeed, understand? "