Ask the sky experimental cabin sitting on the "sofa" on space

The Long March 5 Yaozheng Three Load Rockets in the development of the development of the China Laureate Rocket Technology Research Institute in some cabins confession

On July 24th, the Long March 5 Yao San Lane Rockets, which was developed by the China Launario Rocket Technology Research Institute (China Aerospace Technology Group Co., Ltd., hereinafter referred to as the "Rocket Institute"), will be seized by the total developed. On the orbit, the Chinese space station is about to usher in the first experimental cabin.

After the space station section is transported to the predetermined position by the rocket, the cabin arrow separation must be achieved. The "getting off the bus" of the Tianshi experimental cabin is quite particular. It has separated from the rocket as safely and steadily as safe and steadily sitting on the "sofa".

Sun Yan, deputy director of the productization of the Rocket Academy, introduced that in the past, spacecraft such as satellites and spacecraft were usually separated from the Rockets. "Damags such as large, high, and heavy characteristics such as space station cabin segments are difficult to fix with bags; and point separation in large -scale applications, reliability will be reduced."

In order to allow the space station cabin section to "get off the car" safely, the Rockets developed team has developed a new cabin arrow separation device after nearly 10 years. Realize the separation of the arrows.

However, during the separation test, the development team found that the instant impact of the new separation device on the separation surface is equivalent to the impact of a car with a mass of 1 ton at a speed of 100 kilometers per hour. For this magnitude of the impact, for the space station cabin with many ceramic and optical devices, there is no doubt that there is a risk of disintegrating separation, and it may also damage the crispy components.

How to ensure that the safety is separated, but also the adverse effects of impact during the separation process to minimize the minimum? The research team has a different approach, and does not change the connection form of the arrow, but improves the force of the connection between the cabin arrows -then, the circular "seat" taken by the Tiantian experimental cabin was born.

This "seat" consists of two circular intervals, and new technologies such as "granular damping" are introduced inside. In the friction and collision of granularity, the kinetic energy generated by the separation impact quickly dissipated, reduced by about 10 times, so that when the space station cabin section is separated from the space and the arrow, it is as comfortable and safe as sitting on the "sofa". Essence

On April 29, 2021, the space station sky and the core cabin sat "sofa" to space. Now, asking the Tianyan experimental cabin to enjoy this service again -but because it is higher and larger, the development team has conducted a number of optimized designs to ensure that it can adapt to various changes such as the heat environment.

Of course, in order to allow the Tiantian experimental cabin to have a better "ride" experience, the Rockets "paid" a lot. It is reported that the newly added large "sofa" has more than 100 kilograms. "Generally speaking, the Rockets need to continuously reduce their own weights to improve the capacity of the carrier. Therefore, being able to equip the experimental compartment with an exclusive 'seat', which is inseparable from the powerful carrier capacity of the Long March 5 Yao San Load Rocket." Sun Yan pointed out Essence (Guangming Daily All -Media reporter Zhang Lei Correspondent Xiao Minqi)

- END -