A single-layer regular hexagonal cone deployable truss antenna structure driven by torsion springs

Abstract

The invention relates to a single-layer regular hexagonal cone-type expandable truss antenna structure driven by torsion springs, which includes 12 right-angled triangular units, N rectangular foldable units, N≥6 and N is a multiple of 6, adjacent right-angled The triangular units are connected by a shared slanting bar and two 120-degree double-sided hinges up and down, and the adjacent rectangular folding units are connected by a shared vertical bar and two 180-degree double-sided hinges up and down. The two triangular units are connected to N / 6 rectangular The unit forms one side of the isosceles ladder shape of the truss antenna structure, and the six sides are connected by the oblique rod shared by adjacent triangular units and the upper and lower 120-degree double-sided hinges to form a regular hexagonal cone-type expandable truss antenna structure; after the present invention is folded Small in size and light in weight, the rods in the rectangular folding unit can be completely fitted after being folded, and the storage ratio is not less than 5%, which can meet the high storage ratio requirements of the large-diameter expandable antenna structure in space.

Description

technical field [0001] The invention relates to a single-layer regular hexagonal conical expandable truss antenna structure driven by a torsion spring, which belongs to the technical field of aerospace equipment and equipment. Background technique [0002] With the rapid development of technologies such as deep space exploration and the construction of space solar power plants, in order to meet the needs of different space missions, the size of space agencies required in various space fields is getting larger and larger. However, due to the limitation of the effective space storage compartment of the space launch vehicle, it is necessary to design a space expandable mechanism with a large folding ratio, so that it is in a folded state during the launch and transportation stages and is folded in the fairing, and then unfolded to the space after the spacecraft enters orbit. working status. [0003] The emergence and rise of deployable antennas have enabled humans to have a de...

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Problems solved by technology

[0004] The technical problem solved by the present invention is: in order to solve the problem that the rigidity of the existing single-layer ring truss antenna structure decreases with the increase of the antenna aperture, the rigidity requirement cannot be met, and the existing ring truss antenna has complex driving mechanism and heavy weight. Due to the problems of large size, low deployment reliability, and low storage ratio, a single-layer regular hexagonal cone-type deployable truss antenna structure driven by torsion springs is proposed.

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