A reflective surface for deployable antenna supported by rib mesh and its design method

Abstract

The invention discloses a rib-network-supporting expandable antenna reflecting surface based on rigid-and-flexible intelligent conversion for variable configuration realization and a design method thereof. The rib-network-supporting expandable antenna reflecting surface comprises a reflection surface layer and a rib network structure layer; and a network node of the rib network structure layer is fixedly connected with the reflection surface layer. The variable configuration of the rib-network-supporting expandable antenna reflecting surface is realized by rigid-and-flexible intelligent conversion. The initial state of the rib-network-supporting expandable antenna reflecting surface is a moulded 3D stereo spatial rib network structure. When the antenna reflecting surface is used in a ground state, the 3D stereo spatial rib network structure in transformed into a two-dimensional reflecting surface by intelligent induction; after folded packaging, emission, and injection, the two-dimensional reflecting surface is transformed into a 3D stereo state by intelligent induction and solidification and sizing are carried out, so that the reflecting surface with a stable structural shape works in space in a high rigid manner. According to the variable-configuration antenna reflecting surface, a repeated folding and expanding function can be realized in a 2D state and a high rigidity function can be realized in a 3D state.

Description

Technical field [0001] The invention relates to a rib-net-supported expandable antenna reflecting surface with variable configuration realized through rigid-flexible intelligent conversion and a design method thereof, realizing repeated folding of the antenna reflecting surface on the ground, and converting the configuration into a high-rigidity form after launching into orbit, and expanding the antenna to space The application has a propelling effect. Background technique [0002] With the development of aerospace science and technology, the development of large-caliber, high-precision, light-weight expandable antennas is the development trend of space-expandable antennas. During the launch process, it is in a folded and stored (closed) state. After launching into orbit, it will be commanded by the ground The central control structure is gradually unfolded according to the design requirements to become a large space structure, and then locked and kept in operational working cond...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the deficiencies of low rigidity and unstable shape of the reflective surface of the thin-film space expansion antenna, which lead to low precision of the surface shape, as well as the low folding efficiency of the solid-surface antenna and the high launch cost, the present invention provides a rigid-flexible intelligent The reflective surface and design method of rib-mesh support deployable antenna with variable configuration realized by conversion

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