Military Technology

In addition, considering that the entire Space Express needs to make frequent trips to the Earth-Moon orbit and operate for a long time, we designed two sets of the same system for the spacecraft. The two systems are not related to each other, but they serve as backups for each other. When one of the systems fails, it will automatically switch to the other system.

These two systems are not only at the software system level, but will also be extended to the hardware system. For example, the spacecraft's main engine, attitude engine, spacecraft's life support system, etc.

In this way, the safety of the entire Space Express during navigation can be greatly ensured.

In addition, we have also designed emergency evacuation procedures for Space Express. When Space Express fails at any stage of the Earth-moon orbit, and neither the system nor humans can deal with it and eliminate it in time, astronauts only need to confirm it. Or if confirmed by the ground, the Space Express will automatically switch to emergency mode, and on the premise of ensuring the safety of the cabin members, start returning according to the predetermined procedure and return the cabin members to the earth. "

In addition, if something goes wrong during the lunar flight, members can also take the lunar lander for an emergency landing. The lunar lander will perform calculations based on its position to ensure it lands at the lunar scientific research station.

Of course, this probability is extremely slim, but no matter what, we will be extremely prepared and always put personnel safety first.

Having said this, Zhou Xiangming glanced at Yang Fan, and then continued: "We have already started the design and development of the lunar lander.

In the previous two lunar probe projects, we have accumulated very rich experience in this area. So in this regard, we have sufficient confidence. "

At this point, Zhou Xiangming slid the transparent folding screen on the table, and then a set of 3D models of lunar landers appeared on the big screen. He introduced it to everyone while rotating the model to show it to everyone.

"Please see, this is the shape design model of our lunar lander. Compared with ordinary lunar landers, the structure of our lunar lander is more compact.

The entire lunar lander is mainly composed of these parts, which are the innermost crew cabin, the landing shock absorption system below, the thruster module above, the docking port for boarding, and the capsule-shaped tank around the docking port. The body is the fuel storage tank.

Next, I will introduce to you the basic situation of each part of the entire lunar lander. In order, first I will introduce to you the crew module, which is the core of the entire lunar lander.

The entire crew cabin takes on the shape of a wine bottle, and the other parts are actually designed and assembled around this wine bottle.

The lower cylindrical part of the crew cabin is divided into two modules, which are the airlock cabin below. The airlock cabin is connected to the main entrance and exit of the entire lunar lander, or the hatch. This hatch and the connected airlock are responsible for the entry and exit of the entire lunar lander on the lunar surface.

Above the airlock is the real crew cabin. The crew cabin is divided into two layers: an upper and lower layer. Six space chairs can be placed around the lower part for six members, and four space chairs can be placed around the upper part. The chair can seat four members. "

"The control part of the entire lunar landing site is placed on it, next to these two seats. In other words, these two seats are occupied by the commander and deputy commander of the lunar lander. To put it simply That's the captain and vice-captain.

Under normal circumstances, they will monitor the operating status of the entire lunar lander. When the lunar lander fails and cannot operate autonomously, the commander and deputy commander will take over the lunar lander and manually carry out operations. Control.

Above these two layers of seats is the docking port. This docking port is mainly used for docking the Space Express, so the channel must be slender, like the mouth of a bottle.

Then outside the crew cabin, from top to bottom, first is the entire bottleneck part, which is outside the part of the crew cabin interface channel. The capsule-like tanks surrounding this circle are the fuel tanks of the entire lunar lander. .

Because the lunar lander needs to land as a whole, rise as a whole, and travel back and forth for a long time, the lunar lander has more fuel tanks and stores more fuel to meet the needs of the entire lunar lander during landing, takeoff, and liftoff. Requirements during emergency landing.

Then outside the part from the bottleneck to the body of the bottle, these two circles are the spacecraft thrusters of the entire lunar lander. The entire thruster is set up above instead of below, mainly because the lunar lander will blow up a lot of lunar dust when landing on the moon. If it is too low, the fine lunar dust will gradually enter the thruster, thus becoming hidden dangers, causing malfunctions. "

“So when we were designing, we placed the thrusters of the lunar lander on top, so that the lunar dust blown up by the thruster’s tail flame would not affect these thruster engines.

In order to facilitate the long-term operation and maintenance of the entire lunar lander, these thruster engines can be replaced individually, so this will greatly reduce its future operation and maintenance costs and make maintenance more convenient.

We have prepared eighteen engine thrusters of different sizes for the entire lunar lander. Find Shuyuan www.zhaoshuyuan． The reason why com prepares so many units is to provide sufficient power output for the entire lunar lander. On the other hand, it can also ensure that when 20% of the engines fail, the entire lunar lander can still function normally. run.

When 50% of the thruster engines fail, it can still ensure that the speed of the lunar lander is controlled within a safe range when landing, thus ensuring the safety of its crew members to the greatest extent. "

“The lower part on the flat ground is the entire landing buffer system, which mainly uses the hydraulic system for buffering and shock absorption to eliminate the vibration and impact caused by landing on the lunar surface to the greatest extent.

In addition, these space chairs in the crew cabin also have a collision buffer structure, so it can also reduce some of the impacts caused by collisions and greatly protect the personal safety of the members.

We plan to place three such lunar landers at the lunar scientific research station, two of which can be used interchangeably for daily operations. One is used as a backup and emergency system, responsible for the emergency escape and escape needs of all members in the crew cabin.

Of course, when the second phase of the Lunar Scientific Exploration Station is completed, it will no longer be needed. Because in the second phase of the Lunar Scientific Exploration Station project, we will also build a backup emergency evacuation center near the Lunar Scientific Exploration Station to facilitate future emergency evacuation. "