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Complete scissor-like double-layer annular truss extendible antenna mechanism

A ring truss, double-layer technology, applied in the direction of folding antennas, etc., can solve the problems of ring truss antenna deployment failure, lower overall structural reliability, and fewer types of ring truss mechanisms, so as to achieve simple structure, reduce manufacturing cost and difficulty, and fold relatively large effect

Active Publication Date: 2016-12-14
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although researchers from various countries have done a lot of research on the ring truss antenna mechanism, there are few types of the existing ring truss mechanism, and with the increase of the antenna diameter, the antenna stiffness drops more seriously. Some ring truss deployable antennas use tension The zipper improves the overall rigidity of the antenna mechanism, but the tensioning of the zipper is more complicated and difficult to control, which also reduces the reliability of the overall structure. During the unfolding process, it is very easy to entangle, which makes the ring truss antenna fail to unfold, causing huge economic losses.

Method used

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  • Complete scissor-like double-layer annular truss extendible antenna mechanism
  • Complete scissor-like double-layer annular truss extendible antenna mechanism
  • Complete scissor-like double-layer annular truss extendible antenna mechanism

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Embodiment Construction

[0030] exist figure 1 , figure 2 and image 3 The complete scissor-hinge double-layer ring truss expandable antenna mechanism is shown in the three-dimensional schematic diagram of fully unfolded, half-deployed and fully folded, which includes the inner layer ring truss assembly A, the outer layer ring truss assembly B and 12 inner and outer layer connections Truss assembly C. exist Figure 4In the three-dimensional schematic diagram of the inner ring truss assembly shown in the present invention, the inner ring truss assembly includes 12 inner layer folding units D, each of which has the same structure, and the adjacent inner layer folding units share The two inner layer faceplates are connected to form the inner ring truss assembly, which is a multi-face ring truss structure after being unfolded and folded. exist Figure 5 In the three-dimensional schematic diagram of the outer ring truss assembly of the present invention shown, the outer ring truss assembly includes 1...

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Abstract

The present invention provides a complete scissor-like double-layer annular truss extendible antenna mechanism. The mechanism comprises an inner layer annular truss component, an outer layer annular truss component and N inner and outer layer connection truss components; the inner layer annular truss component and the outer layer annular truss component both include N extending units; two common flower discs are connected between adjacent extending units; the inner and outer layer connection truss components are concentrically arranged; two upper and lower flower discs at each side of the inner layer extending units are connected with the corresponding two upper and lower outer layer flower discs at each side of the outer side layer extending units respectively through one inner and outer layer connection truss component to form a double-layer annular truss; and the distance between the length of the rod pieces at the same position of the inner and outer layer extending units and a flower disc rotation secondary axis and a center line satisfies a special proportional relation, and the ratio of the inner layer and the outer layer is (1-sin(180 / N)) / (1+sin(180 / N)). The complete scissor-like double-layer annular truss extendible antenna mechanism is high in rigidity, simple in structure and high in reliability, and can be applicable to a communication satellite, a space station and a space probe.

Description

technical field [0001] The invention relates to a deployable antenna mechanism. Background technique [0002] The space folding mechanism can be applied to communication satellite platforms, space stations, space telescopes, aerospace vehicles and other spacecraft, and has a good application prospect, and has become one of the research hotspots in the aerospace field. An important application of the large-scale space deployment mechanism in the aerospace field is as a deployment and support mechanism for large-aperture antennas. Currently, the large-aperture space-deployable antennas that have been successfully developed mainly include expandable rib antennas, frame-type deployable antennas, and ring-cylindrical deployable antennas. Deployable Antennas and Ring Truss Deployable Antennas. [0003] The ring truss-type deployable antenna has the characteristics of large folding ratio, small mass, and the mass does not increase proportionally with the increase of the aperture. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/08
CPCH01Q1/08
Inventor 赵永生韩博许允斗姚建涛刘文兰陈亮亮
Owner YANSHAN UNIV
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