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A flat structure with a large fold-to-expand ratio

A folding ratio, flat-panel technology, applied in folding antennas, antennas, power supply systems for space vehicles, etc., can solve the problems of insufficient folding ratio, difficult control, unfavorable deformation process, etc., so as to reduce the instability of installation and manipulation. performance, easy to transport and store, simple structure

Inactive Publication Date: 2021-03-23
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 is not easy to repeat operate

Method used

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  • A flat structure with a large fold-to-expand ratio
  • A flat structure with a large fold-to-expand ratio
  • A flat structure with a large fold-to-expand ratio

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] as attached Figure 1 to Figure 6As shown, a flat panel structure with a large fold-to-expand ratio includes six foldable units, namely the first unit N1, the second unit N2, the third unit N3, the fourth unit N4, the fifth unit N5, the Six units N6; each unit is composed of seven surfaces, namely the first surface T1, the second surface T2, the third surface T3, the fourth surface T4, the fifth surface T5, the sixth surface T6, and the seventh surface T7: The first surface T1 is an equilateral triangle with side length a, and the three sides of the first surface T1 are respectively the first side T1L1 of the first surface, the second side T1L2 of the first surface, and the third side of the first surface T1L3; the third surface T3 is a rhombus whose side length is a and the angle between two adjacent lines is 60°, and the four sides of the third surface T3 are respectively the first side T3L1 of the third surface and the third surface The second side T3L2, the third s...

Embodiment 2

[0061] Such as Figure 7 -8, on the basis of Embodiment 1, an eighth surface T8 is set outside the first side T2L1 of the second surface of each unit, and the eighth surface T8 is an equilateral triangle with a side length a, so The three sides of the eighth side T8 are respectively the first side T8L1 of the eighth side, the second side T8L2 of the eighth side, the third side T8L3 of the eighth side, the third side T8L3 of the eighth side and the first side of the second side T2L1 are adjacent and connected to each other through the twenty-second rotating pair, and the eighth surface T8 can rotate outward along the axis of the twenty-second rotating pair until it overlaps with the second surface T2.

[0062] The first side T8L1 of the eighth surface of the second unit N2 and the first side T8L1 of the eighth surface of the third unit N3 are connected to each other through the twenty-third rotation pair, and the eighth surface T8 of the second unit N2 It can rotate inward alo...

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Abstract

The invention relates to a foldable flat plate structure with single degree of freedom and large folding ratio and discloses a flat plate structure with large folding ratio. The flat plate structure with the large folding ratio comprises six units; and each unit and a motion pair satisfy a series of symmetrical relationships and constraint conditions so as to construct the foldable flat plate structure. The flat plate structure with the large folding ratio can realize a folded state and an unfolded state; in the folded state, the area is smaller so that the flat plate structure with the largefolding ratio is convenient to transport; in the unfolded state, a larger working space is obtained; the whole structure only has one degree of freedom; advantages of simple production machining, convenient motion control, high reliability and so on are realized; and the flat plate structure with the large folding ratio is of great realistic significance and broad application prospects in multiplefields such as aerospace and civil engineering.

Description

technical field [0001] The invention relates to a foldable flat plate structure with a single degree of freedom and a large folding-to-expansion ratio, in particular to a foldable flat plate structure transformed by a single driving triangular-like plane and a hexagonal-like plane. Background technique [0002] Due to its good symmetry, the flat plate structure is widely used in aerospace, architectural structures, artworks and daily life. However, due to its large area and unfavorable transportation, the flat plate structure can only be used in fixed occasions. [0003] The space foldable structure is a new type of structure born with the development of aerospace science and technology. It is in a folded storage state during the launch process and has the smallest volume capacity; after entering orbit, the foldable structure can be unfolded into a larger In operational working condition; upon return or recovery, the structure can be folded back into the spacecraft. The spa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/44H01Q1/08H01Q1/12
CPCB64G1/44H01Q1/08H01Q1/1235
Inventor 马家耀陈学松陈焱杨富富
Owner TIANJIN UNIV