Torsion spring driven moonlet borne expandable plane structure and mounting method thereof

Abstract

The invention relates to the technical field of aviation and aims to provide a torsion spring driven moonlet borne expandable plane structure and a mounting method thereof. The torsion spring driven moonlet borne expandable plane structure comprises equilateral triangle unfolding units, wherein each equilateral triangle unfolding unit comprises a thin-walled rod member, a node, a connector, a torsion spring and a pin shaft; adjacent equilateral triangle unfolding units are spliced by using different nodes. The mounting method comprises the following steps of mounting effective load, connecting the thin-walled rod members with the connectors, connecting the thin-walled rod members with six-directional nodes, three-directional nodes, four-directional nodes, and center nodes, mounting two-directional nodes, welding a lead, connecting the moonlet borne expandable plane structure with a moonlet, and connecting a lead. The expandable plane structure is unfolded by the torsion springs at joints of the expandable plane structure and can be quickly switched into an unfolding state from a folding state, so that the expandable plane structure is simple in operation and high in expansion reliability.

Description

technical field [0001] The invention relates to the field of aerospace technology, in particular to a torsion spring-driven small satellite onboard expandable planar structure and an installation method thereof. Background technique [0002] In recent years, small satellites have been paid more and more attention due to their advantages of light weight, low cost and short research cycle. However, small satellites are light in weight, small in size, and have limited attitude control capabilities. Therefore, there are few working platforms on current small satellites, which limits the functions of small satellites. At present, small satellites mainly use small helical antennas to send and receive signals, and solar cells are pasted on the surface of the satellites to obtain energy, rather than relying on the antenna platform and solar sails on board. [0003] In order to expand the application field of small satellites, there is an urgent need for a larger platform structure ...

AI Technical Summary

Problems solved by technology

Generally, considering the limited volume of the satellite fairing of the launch vehicle and the limited energy that the small satellite can provide, the platform structure of the small satellite usually adopts the expandable structure and the potential energy stored in the folded state as the driving method, but there is no very Mature, or highly versatile technology, the market prospect in this field is promising

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