Follow-up tracking type dynamic and static isolation type double-super satellite platform and manufacturing method thereof

Abstract

The invention provides a follow-up tracking type dynamic and static isolation type double-super satellite platform and a manufacturing method thereof. A brand new idea of a platform follow-up tracking effective load is adopted, super-precise and super-stable control is performed on the platform with the effective load being the center, and a follow-up tracking effective load coarse control mode is adopted for the platform. Meanwhile, by means of the dynamic and static isolation method, a satellite is divided into a load cabin and a service cabin; the load cabin guarantees that the effective load reaches expected super-precise and super-stable control through a high-performance magnetic levitation flywheel arranged on the load cabin; the service cabin resists environment interference and performs follow-up tracking on the load cabin through an outer executing mechanism installed on the service cabin; and the two cabins can reach expected opposite poses. The load cabin and the service cabin are connected in a non-contact manner through a levitation device, vibration interference of the service cabin can be effectively isolated, and the vibration isolation effect is not affected by sensor performance. The double-super satellite platform can be applied to spacecrafts, such as high-resolution remote sensing satellites and deep space exploration astronomical telescopes carrying high-resolution sensitive effective loads.

Description

technical field [0001] The invention relates to the field of satellite platforms, in particular to a follow-up tracking type dynamic and static isolation satellite platform and a manufacturing method thereof designed for spacecraft with ultra-precision and ultra-stable requirements. Background technique [0002] The lightweight structure of large spacecraft is flexible, and the problem of dense low-frequency modes is becoming more and more obvious, which greatly restricts the bandwidth design of the control system; the periodic dynamic interference induced by moving parts such as flywheels, gyroscopes, and drive mechanisms is the main cause of load vibration. reason. With the improvement of spacecraft performance requirements, the problems of attitude control and flutter suppression caused by the large flexibility of lightweight structures and vibration interference of moving parts have become more and more prominent, and have become the main restrictive factors for the deve...

AI Technical Summary

Problems solved by technology

The passive vibration isolation system has a simple structure, is stable and reliable, and does not require additional energy and measurement devices, but the low-frequency suppression effect is poor; the active vibration isolation system has better performance in theory, but the control system is complicated, the stability is poor, and it has a water bed effect

At the same time, based on voice coil motor technology, foreign countries have developed a non-contact non-disturbance vibration isolation platform, which can solve the problem of platform vibration interference, but it brings the complexity of the spacecraft attitude control system and makes it difficult for practical application

At present, both the traditional active and passive vibration isolation methods and the recent non-contact non-disturbance vibration isolation method are all based on the idea of ​​active control of the payload by the platform. The former has limited vibration isolation effect, while the latter has complex structure and control.

In order to avoid the cumbersome and numerous vibration interference problems of various platforms, and systematically solve the problem of ultra-precise and ultra-stable satellite platforms, the present invention provides a follow-up tracking type dynamic and static isolation dual-ultrasatellite satellite platform and its manufacturing method

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