"Ask the sky" opens the "big wings", and the anti -vibration technology is really strong!

Asked the launching task of the sky, the construction of the experimental cabin was successful, and the construction of the Chinese space station entered a new stage. The unremitting pursuit of technological innovation and reliable products is the eternal topic of Chinese aerospace. In the Long March 5 -Car -Car Rockets launched the Tiangtian Experimental Class, new technologies and new products, good technologies and good products have emerged endlessly. develop.

On the nine days, after two expansion of the Sky Experimental Card Flexible Sunwinzi, after twice, it finally showed a beautiful whole picture. The questioning compartment under the "full wings" was more towering.

The technical staff of the Five Hospitals of Aerospace Science and Technology Group introduced that one of the reasons why the flexible solar windsurfing did not begin before the connection and docking was to reduce the impact of flexible solar windsurfing vibration on the docking tasks of the meeting.

The "flexible" characteristics of flexible sunroof determine that it is particularly easy to vibrate. If it is not controlled, each "gentle and vibration" may have a fatal impact on the aerospace task. To this end, on the basis of the 502 -rigid solar windsurfing control of the Fifth Hospital of Aerospace Science and Technology Group, it has developed a method of suppression of flexible solar windsurfing vibration, using the method of "four or two pounds" to allow it to "soar smoothly" in space.

Earlier, most of my country's spacecraft used semi -rigid solar windsurfing. The core compartment of the space station launched in 2021 used flexible solar windsurfing. Compared with the two, the inherent frequency range of semi -rigid solar windsuries is narrow, the algorithm is simple and easy to control, and the flexible solar canvas are too soft, the inherent frequency range is wide. Windsurgery will be stimulated and vibrated.

If this vibration develops, light will affect the control accuracy and stability of the spacecraft, and then affect the load work and affect the connection of the meeting. In the case, if the control system does not go through a special targeted design, it may stimulate the passive control of the control system, resulting in the more controlling control, the more vibrating the vibration, the more controlling the control system, the more controlled the control system, which will cause the system to be stable and affect the space station standing in the standing space. Rail stable operation.

This is like two people picking water with flatness, one will pick, one will not pick. Those who can pick water can adjust the bodies on the shoulders by adjusting the ups and downs of their bodies, and the flat burden on the shoulders shakes very small. The water in the bucket is only slightly ripple, and at the same time, it is as good as flying. People who do not pick water will not control the burden by adjusting their bodies, causing the flat burden to shake seriously up and down, the bucket shakes sharply, and the walking speed is also affected by the flat burden. There are only less than half buckets of water left.

The experts of the Aerospace Science and Technology Group are in similar methods to suppress the vibration through the posture of the spacecraft. The adjustment may be small, but it is very useful.

As the so -called "knowing is not difficult, but the only difficulty in doing", it can achieve the inhibition of the large -scale flexible windsurfing vibration of the space station, which is inseparable from the years of research and development personnel. They first use theoretical analysis and experiments to identify the source of windsurfing vibration, and then find ways to control this source, and through fine mathematics simulation and a large amount of physical simulation, summarize and design the algorithm that effectively controls the solar canal vibration vibration The algorithm is the core technology to inhibit the vibration of the sun.

The basic process of its control is to identify the vibration parameters of flexible solar windsurfing through the camera observation and other means, and then the computer uses the corresponding algorithm to determine the posture adjustment that the spacecraft needs to make, and issue orders to adjust the posture of the aerospace gesture. Executive institution. Although the developers know very little about the technical details of foreign curling vibrations abroad, from the perspective of the control effect, the control methods of our independent innovative design are not only more suitable for the "physique" of Chinese aerospaces, but also the main technical indicators are even better than foreign.

There is no size and no fineness. It must be considered, designed, and verified. This is the characteristics of aerospace engineering. To build the Chinese people's own space station, the Chinese want to move towards a deeper deep space and promote the establishment of a aerospace power. The aerospace people are progressing every day to solve such large and small problems.

Source: China Aerospace Technology Group

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