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 identical systems for the spacecraft. The two systems are not related to each other, but they are mutually reinforcing.
Backup. When one system 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 hardware systems. 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 designed emergency evacuation procedures for Space Express. When Space Express breaks down 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 it is confirmed by the ground, the Space Express will automatically switch to emergency mode, and on the premise of ensuring the safety of the cabin crew members, start returning according to the predetermined procedure and return the cabin crew 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, the probability of this 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 aspect. So we have full confidence in this aspect."
Speaking of this, 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 rotated the models to show them to everyone, and introduced them 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 connection
The airlock module is responsible for the entry and exit of the entire lunar lander on the lunar surface.
The upper part of 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 accommodate four people."
"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 the docking of the Space Express, so the channel must be long and 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 evacuation and 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 above instead of below, mainly because it allows the lunar lander to land on the moon.
A lot of lunar dust will be blown up, and if it is too low, the fine lunar dust will gradually get into the thruster, which will become a hidden danger and cause 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. The reason why we have prepared so many engines 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 operate normally.
When 50% of the propeller engines fail, it can still ensure that the speed of the lunar lander is controlled within a safe range when it lands, ensuring the safety of its crew members to the greatest extent."
“The lower part on the flat surface is the entire landing buffer system, which mainly uses the hydraulic system for buffering and shock absorption to minimize the vibration and impact caused when landing on the lunar surface.
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 to take on the emergency evacuation of all members in the crew cabin.
Escape needs.
Of course, when the second phase of the Lunar Scientific Exploration Station is completed, it will no longer be necessary. Because in the second phase of the Lunar Scientific Exploration Station, we will also build a backup emergency escape center near the Lunar Scientific Exploration Station to facilitate
It will be used for emergency evacuation in the future.”
