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Has the experiment on the escape device of the spacecraft been carried out, and how has it performed?

Wu Hao couldn't help becoming concerned, after all, this is the last insurance that concerns the life safety of astronauts. If there is a problem, the rocket will malfunction at that time, and the escape device will need to work.

But if the escape device also fails, the astronauts in the spacecraft will really be doomed.

This is a matter of life and death, so Wu Hao naturally attaches great importance to it.

Hearing Wu Hao's question, Zhou Xiangming nodded, and then said to Wu Hao: "We have conducted a zero-altitude abort device ignition experiment, and this experiment has been a complete success.

For the specific situation, I ask Guo Yulong, Chief Engineer Guo, who is in charge of our manned spacecraft project, to give you a detailed introduction. "

Wu Hao nodded upon hearing this, and then looked at Guo Yulong.

As for Guo Yulong, obviously he also had related preparations. Seeing that Zhou Xiangming mentioned his name, he immediately opened the folder, nodded at Wu Hao and said.

"On the 10th of last month, we successfully conducted a zero-altitude escape experiment of the spacecraft return module. The experiment simulated a serious failure of the launch vehicle after the spacecraft was launched, in order to ensure the safety of the astronauts.

The command center resolutely issued a disengagement command via remote control, and then the reverse rocket on the return capsule of our manned spacecraft was quickly ignited, and the return capsule carrying the astronauts was accelerated to escape from the faulty rocket and pushed up to about 1.5 kilometers from the ground. high altitude.

Immediately, the guide chute on the return capsule was thrown out, and three main parachutes were pulled out immediately, so that the return capsule decelerated rapidly, and then landed on the ground smoothly. Before landing on the ground, the return capsule of the spacecraft will start the reverse thrust rocket again at a position five meters above the ground to further decelerate the return capsule to ensure that the return capsule can land at the minimum speed and ensure the personal safety of the astronauts in the return capsule. "

Speaking of this, Guo Yulong said to Wu Hao: "We have made relevant videos and photos to record the whole experiment process. We have made a short video clip of more than one minute. You can watch it."

Haha, it seems that you are well prepared. Wu Hao immediately nodded in agreement.

Under Guo Yulong's signal, the lights in the conference room dimmed, and on the large high-definition screen on one side, the relevant videos and photos of this experiment that Guo Yulong said began to play.

At the beginning of the video, there are a few related photos of the scene. It can be seen that a manned aircraft is being placed in the experimental site. To be honest, it was the first time for Wu Hao to see the full picture of their own manned ship.

As a reference with the personnel at the scene, this manned ship is very tall.

After a few photos, the launch process followed. After a few thick and powerful countdowns, flames and huge smoke erupted from the bottom of the manned spaceship's return cabin.

Whoosh...

With a loud roar, long orange-red flames erupted from the tail around the return capsule, quickly pushing the return capsule of the spacecraft to a high altitude.

The return capsule of the spacecraft flew higher and smaller, and then the screen switched to the optical tracking equipment. Through the optical tracking equipment screen, it can be seen that the return capsule was pushed to an altitude of about 1.5 kilometers from the ground, and then began to fall. It didn't take long to fall, and the pilot parachute on the return module of the spacecraft was thrown out, and then the three main parachutes were also run out and deployed, and the speed of the spacecraft dropped significantly.

As soon as the screen turned, it was the moment when the spaceship landed on the ground. Following a burst of huge smoke and dust, the spaceship was covered by the smoke and dust, and the three huge parachutes also detached immediately, and slowly floated to the ground.

The video is over, followed by some live photos.

Guo Yulong introduced to Wu Hao and the others: "Everyone, please look, this is the live photo of the spacecraft after landing. We can see that the surface is very complete and there is no loss. And the posture is upward. It can be said that the whole landing process is very smooth. Perfect.

This is what we said when we transported the return capsule of the spacecraft back to the research institute to open the warehouse. We can see that everything inside the return capsule is normal. The seven simulated dummies we used for the experiment did not have any damage. The various experimental sensors on the dummies Also everything works fine.

This shows that this experiment has also achieved a very complete success, and our idea of ​​using the recoil engine of the spacecraft as an escape device is correct. "

clap clap clap...

Wu Hao took the lead, and warm applause broke out in the conference room.

Well done! Wu Hao praised, and then asked Guo Yulong: "I noticed that your zero-altitude escape experiment of the manned spacecraft was carried out with the relaxation of orders issued by the command and control center.

So in real launch missions, is this method also adopted, what is the judgment standard, and is it reliable? "

Hearing Wu Hao's question, Guo Yulong nodded and explained: "It's like this. We have set up three methods for the activation of the escape device. Any of these three methods can return the manned spacecraft to the capsule. Take away the faulty rocket, so that the astronauts in the return capsule can escape safely.

First of all, the first method, which is also the most commonly used method, is to let the intelligent systems of the rocket and spacecraft judge independently and activate the escape device independently.

If the rocket's intelligent control system judges that there is a problem with the rocket, the rocket's intelligent control system will transmit the relevant alarm to the spacecraft's intelligent control system, and then the spacecraft will make an emergency response and activate the escape device.

The response time of the whole set is very short, generally only a few seconds or even a few milliseconds, which can be said to be very sensitive and fast, which is beneficial for the spacecraft to deal with possible major accidents and ensure the safety of astronauts.

As for the second method, the astronauts carried in the return capsule of the manned spacecraft manually control the escape.

This method occurs when the intelligent control system of the rocket or the intelligent control system of the spacecraft fails and cannot respond in time.

At this time, the astronauts in the spacecraft detected the relevant data, and immediately followed the relevant procedures to manually activate the escape system.

The escape device on the spacecraft's return capsule will also respond quickly, pushing the return capsule to escape to a safe distance before landing.

The third method is naturally remote control by our ground command and control center. This situation occurs when the intelligent control system of the rocket and the spacecraft fails, and the astronauts in the manned spacecraft’s return cabin do not find the failure, or the astronauts The personnel are already disabled, such as comatose, or injured and life-threatening, and cannot manually activate the escape system.

Then, at this time, the ground measurement and control center, which has been closely monitoring the flight of the rocket on the ground, will immediately report to the command and control center after detecting that the rocket has failed, and the command and control center will also respond immediately, and remotely control the spacecraft to separate from the faulty rocket. escape. "

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