Manufacturing methods of inflatable deployable antenna reflecting surface based on shape memory polymer and reflecting surface film and skin thereof

A memory polymer, reflective surface technology, applied in the aerospace field, can solve the problem of inconvenient folding of the reflective surface of the expandable solid surface antenna, achieve convenient expansion and contraction processes, ensure rigidity and stability requirements, and high system reliability. Effect

Active Publication Date: 2013-01-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of inconvenient folding of the existing expandable solid surface antenna reflective surface, the present invention provides a manufacturing method of an inflatable expandable antenna reflective surface based on shape memory polymer and its reflective surface sheet and skin

Method used

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  • Manufacturing methods of inflatable deployable antenna reflecting surface based on shape memory polymer and reflecting surface film and skin thereof
  • Manufacturing methods of inflatable deployable antenna reflecting surface based on shape memory polymer and reflecting surface film and skin thereof
  • Manufacturing methods of inflatable deployable antenna reflecting surface based on shape memory polymer and reflecting surface film and skin thereof

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specific Embodiment approach 1

[0032] Specific implementation mode one: the following combination figure 1 , figure 2 , image 3 and Figure 4 This embodiment will be specifically described. An inflatable expandable antenna reflective surface based on shape memory polymer, which is composed of a reflective surface body 1, a first circumferential airbag 2, a second circumferential airbag 3, a radial airbag 4 and a skin 5, the reflector The surface body 1 is an annular paraboloid formed by splicing N pieces of the same reflective surface sheets 1-1, with a circular opening at the bottom. Each reflective surface sheet 1-1 is a fan-shaped curved surface lobe. The upper edge of the convex paraboloid of the surface body 1 is fixedly connected with the first annular airbag 2, and the lower edge of the convex paraboloid of the reflective surface body 1 is fixedly connected with the second annular airbag 3, and the first annular airbag 2 is connected with the second annular airbag 2. N radial airbags 4 arranged...

specific Embodiment approach 2

[0040] Specific implementation mode two: the following combination figure 1 , image 3 This embodiment will be specifically described. The difference between this embodiment and the first embodiment is that: the thickness of the reflective surface body 1 is 0.02-40mm; the outer radius of the reflective surface body 1 is 0.5-60m; the inner radius of the reflective surface body 1 is: 0.1-2m; the ratio of the focal length of the paraboloid of revolution of the reflective surface body 1 to the aperture of the paraboloid of revolution of the reflective surface body 1 is 0.025-2.5:1.

specific Embodiment approach 3

[0041] Specific embodiment three: the difference between this embodiment and specific embodiment one is: between the reflective surface sheet 1-1, the first circumferential airbag 2, the second circumferential airbag 3, the radial airbag 4 and the skin 5 Bonding, mechanical connection or a combination of bonding and mechanical connection are used.

[0042] According to the designed skeleton structure of the inflatable expandable antenna reflector, the closed first hoop airbag 2, the second hoop airbag 3 and N radial airbags 4 are placed in the compartments of N reflective surface sheets 1-1 in sequence Centered and fixed, the size and shape of the airbag is commensurate with the shape of the two-dimensional reflective surface.

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Abstract

The invention discloses manufacturing methods of an inflatable deployable antenna reflecting surface based on shape memory polymer and a reflecting surface film and skin thereof, which relate to the manufacturing methods of an antenna reflecting surface, and a reflecting surface film and the skin thereof, and solve the problem that a traditional deployable solid surface antenna reflecting surfaceis inconvenient to fold. The antenna reflecting surface comprises a reflecting surface body, a first circular airbag, a second circular airbag, radial airbags and the skin, the upper end and the lower edge of a convex paraboloid of the reflecting surface body are respectively and fixedly connected with the first circular airbag and the second circular airbag, the convex paraboloid of the reflecting surface body is uniformly provided with N radial airbags which are lined in the circumferential direction, and the skin is covered on the convex paraboloid of the reflecting surface body; the reflecting surface film is coated on fiber reinforcing material through shape memory polymer material; and the skin coats the shape memory polymer material on flexible material. The antenna reflecting surface can be conveniently folded and unfolded, and is used for space communication.

Description

technical field [0001] The invention relates to a method for manufacturing an antenna reflective surface, a reflective surface sheet and a skin, and belongs to the field of aerospace technology. Background technique [0002] In the existing field of aerospace technology, due to the space limitation of the aerospace vehicle, the aerospace antenna reflector must be folded before launching, and it must be automatically unfolded when working in orbit. Due to the limited load of the aerospace vehicle, the aerospace antenna reflector must be In order to reduce its weight, in addition, it should also ensure the high reliability of the antenna reflector and other performances. With the rapid development of aerospace technology, satellite communication, radio astronomy and radar technology, aerospace antenna reflectors are gradually developing in the direction of small size, light weight and high performance. [0003] In recent years, the rapid development of smart materials has pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/16
Inventor 冷劲松刘彦菊兰鑫阳鹏
Owner HARBIN INST OF TECH
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