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A foldable plate structure with variable radial size

A technology with variable radial dimensions, applied in folding antennas, space vehicle power supply systems, etc., can solve problems such as insufficient folding ratio, unfavorable deformation process, and difficult control

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 foldable plate structure with variable radial size
  • A foldable plate structure with variable radial size
  • A foldable plate structure with variable radial size

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] as attached Figure 1 to Figure 6 As shown, a foldable plate structure with variable radial dimensions includes six foldable units, namely the first unit P1, the second unit P2, the third unit P3, the fourth unit P4, and the fifth unit P5 , the sixth unit P6; each unit is composed of nine surfaces, respectively the first surface T1, the second surface T2, the third surface T3, the fourth surface T4, the fifth surface T5, the sixth surface T6, the The seventh surface T7, the eighth surface T8, and the ninth surface T9; the first surface T1 is an isosceles trapezoid whose waist length and upper base length are both a and the lower base length is 2a, the upper base is the first side T1L1 of the first surface, and the lower The bottom is the third side T1L3 of the first side, and the two waists are the second side T1L2 of the first side and the fourth side T1L4 of the first side respectively; A parallelogram with an included angle of 60°, the four sides of the third surfac...

Embodiment 2

[0068] On the basis of Embodiment 1, an equilateral triangular surface TT with a side length a is set outside the second side T7L2 of the seventh surface of each unit, and the three sides of the equilateral triangular surface TT are respectively the equilateral triangular surface TT. One side TTLI, the second side TTL2 of the regular triangular face, the third side TTL3 of the regular triangular face, the second side TTL2 of the regular triangular face and the second side T7L2 of the seventh face shared by the second side TTL2 of the regular triangular face and the seventh face T7L2 of the regular triangular face A whole is called the tenth surface T10 of the unit, and the tenth surface T10 is an isosceles trapezoid whose waist length and upper base length are a and the lower base length is 2a, and the third side T7L3 of the seventh surface is the The upper base of the tenth face T10 is called the first side T10L1 of the tenth face, and the first side T7L1 of the seventh face a...

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Abstract

The present invention relates to a single-degree-of-freedom, large-folding ratio, and radial size-variable folding flat plate structure. Disclosed is a radial size-variable folding flat plate structure which includes six units; each unit and motion pairs satisfy a series of symmetrical relationships and constraints so as to construct the folding flat plate structure. The invention can realize a folding state and an unfolding state; in the folding state, the area is small, which facilitates conveying; in the unfolding state, the flat plate structure has a large working space; the whole structure has only one degree of freedom; and the radial size-variable folding flat plate structure is simple to produce and process, is convenient in motion control, is high in reliability, and has importantsignificance and broad application prospect in many fields such as aerospace and civil engineering.

Description

technical field [0001] The present invention relates to a single-degree-of-freedom, large folding-expanding ratio, and a foldable flat plate structure with adjustable radial dimensions. Transformable expandable flat panel structure. 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 space-deployable structure using the over-constraine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/44H01Q1/08
CPCB64G1/44H01Q1/08
Inventor 陈焱陈学松马家耀杨富富
Owner TIANJIN UNIV