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Paraboloid structure with large folding-unfolding ratio

A paraboloid, folding ratio technology, applied in the direction of folding antennas, electrical components, antennas, etc., can solve the problems of unfavorable deformation process, difficult repeated operation, insufficient folding ratio, etc., to reduce the space occupied, installation and manipulation. Instability, simple structure effect

Active Publication Date: 2020-12-29
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing spatially expandable structures mainly involve folding on flat or curved surfaces, such as solar panels and satellite antennas, and there is a problem of insufficient folding ratio, some of which are non-rigid folding, and the deformation process is not conducive to control and difficult to repeat Operation and more complicated mechanism

Method used

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  • Paraboloid structure with large folding-unfolding ratio
  • Paraboloid structure with large folding-unfolding ratio
  • Paraboloid structure with large folding-unfolding ratio

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Embodiment 1

[0060] as attached Figure 1 to Figure 6-2BAs shown, a foldable parabolic structure includes four foldable subunits, namely the first subunit U1, the second subunit U2, the third subunit U3, and the fourth subunit U4; each subunit Consists of eight folding units, namely the first folding unit E1, the second folding unit E2, the third folding unit E3, the fourth folding unit E4, the fifth folding unit E5, the sixth folding unit E6, and the seventh folding unit E7 , the eighth folding unit E8; the basic shape of the first folding unit E1 is a right-angled triangular flat plate whose inner angle is α, and the length of the side opposite to the inner angle is a, and on the basis of the right-angled triangular flat plate, one side thereof is a paraboloid, The other side is flat, and the three sides on the front of the first folding unit E1 are respectively the first front side E1FL1 of the first folding unit, the second front side E1FL2 of the first folding unit, the third front si...

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Abstract

The invention discloses a paraboloid structure with a large folding-unfolding ratio, wherein the paraboloid structure comprises four same foldable sub-units, namely a first sub-unit, a second sub-unit, a third sub-unit and a fourth sub-unit, each sub-unit is composed of eight folding units, namely a first folding unit, a second folding unit, a third folding unit, a fourth folding unit, a fifth folding unit, a sixth folding unit, a seventh folding unit and an eighth folding unit. The paraboloid structure is of a foldable structure with a single degree of freedom, one parabolic antenna can be folded into a prism-like body through one drive, the occupied space of the parabolic antenna is reduced, the mechanism movement singularity phenomenon does not exist, and the driver can be mounted at any kinematic pair position according to actual requirements.

Description

technical field [0001] The invention relates to a foldable rotating paraboloid structure with a single degree of freedom and a large folding-expansion ratio. The structure is composed of triangular and quadrangular plates, the upper surface of which can be made into a paraboloid of revolution, and the folding and unfolding of the paraboloid of revolution can be realized. Background technique [0002] Due to its good symmetry and focusing, parabolic structures are widely used in signal receiving antennas and radio telescopes. However, due to their large size and unfavorable transportation, parabolic structures can only be fixed on large-area sites. [0003] Different from traditional mechanisms or structures, deployable structures are peculiar engineering structures, which belong to the intersection field of mechanisms and structures. On the premise of realizing the basic load-bearing function of the structure, it can change the geometric shape in a large scale to adapt to d...

Claims

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Application Information

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IPC IPC(8): H01Q1/08H01Q15/16
CPCH01Q15/161
Inventor 陈焱陈学松马家耀
Owner TIANJIN UNIV