Behind the "Sky Question" experimental cabin: "Hercules" escort, the double insurance "zero window" successfully launched

Jimu reporter Yang Jinying Cao Xuejiao

Correspondent Wang Wei Tong Li Yanming Shangchi

On the afternoon of July 24, the "Ask Sky" experimental cabin was successfully launched at the Wenchang Launch Center in Hainan. This time I asked the sky cabin into space, and it was the Long March 5 Yayao Three Lauret Rockets. It has been successful in the launch of the largest load in my country so far, and the "zero window" launch task for the first time has been successful.

(Photo by Tu Hai Chao)

"Ask the sky" experimental cabin is escorted by "Hercules"

Ask the Tianjin Experimental Cels is the largest load weighing and the largest package size so far in my country, weighing about 23.2 tons. Corresponding to it, the Long March 5 -Car Rockets of this launching task are also the "strong" in the Long March Rockets.

It is the new -generation carrier rocket with the largest near -site rail loading capacity in my country, and has a launch capacity of 25 tons of near -ground rails.

At the same time, in order to allow the pre -tracking section to reach the scheduled track safely and comfortably, the rectifier hood used by the Long March 5 -carrying rocket is 20.5 meters long and 5.2 meters in diameter. It is the largest rocket rectifier in my country.

"In response to this task, in the early stage of the production of rectification, the development team used three -dimensional visual scanning and other technologies to accurately simulate the size of the rectifier and the size of the experimental compartment." China Aerospace Science and Technology Group No. 5 Lairer B Liren Rockets Deputy Chief designer Lou Liang introduced, "After repeated detailed school verification, we confirmed the safety gap in the key position to ensure that during the flight and separation process, the experimental cabin enjoys enough space and will not be close to the rectifier during the flight."

(Photo by Tu Hai Chao)

Perform the "zero window" launch task for the first time

The launching task of the Tiantian experimental cabin is the first time that my country has launched a "zero window" launch in the large thrust rocket. "Ask the Tianjie experimental cabin to quickly meet with the space station sky and the core compartment. Therefore, it must be launched in the specified time." Liu Bing, the overall deputy director of the long B Rockets, said.

In order to ensure that everything is lost, the experimental players launched "dual insurance" for the Rockets.

The first "insurance" is the "take -off time correction technology", which expands the launch window to 2 minutes and 30 seconds. This allows the rocket's control system to automatically calculate the deviation and adjust the target track. Even if the rocket fails to launch it completely according to the scheduled window, it can be launched in the window time of 2 minutes and 30 seconds. Essence

The second "insurance" is to optimize the launching process. Liu Bing introduced: "The five series of rocket systems are complicated, and there are many types of processes in the launch site. We summarize the experience of the first 7 launch, optimize the launch process of 10 minutes before the shooting, some processes are the front, and the distance from the ignition is 2.5 minutes. After completing the preparations before launch, reserved the time of failure. Once exposed some problems before ignition, you can give us sufficient time to respond. "

This double "insurance" guarantees that the Long March 5 Lane Rockets sends the space station as questioning and sent the experimental compartment to the scheduled track, and the launch has achieved a complete success.

As the "carrier line" of the construction project of my country's space station, the Long March 5 B series of the carrier rocket is mainly used for the launch task of large -scale spacecraft such as the space station cabin.

After the launching task of the Experimental Card in this execution, the Long March 5 B series of the Lae Rockets will also undertake the launching task of the Dream Sky Experiment.

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