In-orbit expansion-type satellite structure

Abstract

The invention provides an in-orbit expansion-type satellite structure which comprises a plurality of satellite body modules with the same configuration arranged along circumference, wherein the adjacent satellite body modules are connected by an expansion-type truss, and a corresponding satellite body connecting and unlocking device is disposed between the adjacent satellite body modules; at a launch stage, the satellite body modules are connected by the satellite body connecting and unlocking device into a whole, so a satellite body is retracted and satisfies a demand for carrying and enveloping during the launch; when the satellite body enters an orbit, the satellite body connecting and unlocking device works to realize unlocking among the satellite body modules, and the satellite body modules realize in-orbit expansion under effect of the expansion-type truss; and during in-orbit work, in-orbit high-rigidity locking of the expansion-type truss is realized by a locking mechanism of the expansion-type truss. The in-orbit expansion-type satellite structure provided by the invention solves the contradiction between that the satellite body cannot exceed a carrying limit and that the satellite shall satisfy a structural configuration demanded by an in-orbit large load, and provides an engineering solution manner for subsequent applications of the large load.

Description

technical field [0001] The invention relates to satellite structure design, in particular to an in-orbit deployable satellite structure. Background technique [0002] Satellite bodies are usually divided into propulsion cabins, service cabins (or platform cabins), load cabins, etc. according to their functions. Each cabin provides a mechanical installation interface for each single machine and its cables. Each compartment is reliably connected as a whole by bolts and other fasteners. However, due to the limitation of the carrying envelope, the size of the satellite structure is also limited. [0003] In order to meet the requirements of large load configuration, and to realize the modular design and high stability of the satellite structure, the unfolded satellite structure can achieve a larger on-orbit size and ensure the stability of the structural platform through a modular and expandable design. On-orbit high stability, while meeting the requirements of large size on-o...

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Problems solved by technology

[0005] The expandable satellite structure involved in the present invention has not found descriptions or reports similar to the present invention, and has not yet collected similar data at home and abroad.

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