Method for connecting space-based radar antenna reflection surface to bistable composite material deployable cylindrical shell

Abstract

The invention provides a method for connecting a space-based radar antenna reflection surface to a bistable composite material deployable cylindrical shell, belonging to the technical field of space-based radars. The problems of an existing deployable antenna are solved. The method comprises a step of connecting the space-based radar antenna reflection surface to the bistable composite material deployable cylindrical shell by using an aramid rope and aramid cloth, multiple aramid cloth is arranged along the aramid rope and is arranged at two opposite sides of the aramid rope with intervals, the center line positions of the aramid cloth are aligned with the aramid rope, the aramid cloth and the aramid rope are in stitching joint and bonding connection, and the total number of the aramid cloth is odd, wherein aramid cloth in odd number positions is bonded to the reflection, the aramid cloth in even number positions is bonded to the bistable composite material deployable cylindrical shell, and at the same time, the aramid rope is arranged between the aramid cloth in odd number positions and the bistable composite material deployable cylindrical shell. The method is used for the space-based radar antenna reflection surface.

Description

technical field [0001] The invention belongs to the technical field of space-based radar, and in particular relates to a connection method of a reflective surface of a space-based radar antenna and a foldable cylindrical shell of a bistable composite material. Background technique [0002] Space-based radar can work around the clock, has large-scale, high-precision detection capabilities, and has capabilities that optical systems, ground-based radars, and airborne radars do not have; due to the many advantages of space-based radar, it has received extensive attention and research from many countries ; The large phased array planar antenna with a length of hundreds of meters and an area of ​​several hundred square meters is an important part of space-based radar. The antenna has a large area and a high aspect ratio. In order to facilitate transportation, the antenna must be folded on the ground. After being launched into space, the work is started. The existing foldable and u...

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Problems solved by technology

[0002] Space-based radar can work around the clock, has large-scale, high-precision detection capabilities, and has capabilities that optical systems, ground-based radars, and airborne radars do not have; due to the many advantages of space-based radar, it has received extensive attention and research from many countries ; The large phased array planar antenna with a length of hundreds of meters and an area of ​​several hundred square meters is an important part of space-based radar. The antenna has a large area and a high aspect ratio. In order to facilitate transportation, the antenna must be folded on the ground. After being launched into space, the work is started. The existing foldable and unfoldable antennas mainly have two supporting and unfolding methods: mechanical and inflatable. The mechanical structure is complex and the weight is relatively large. The expansion and contraction are obvious, and the stability after unfolding is not ideal. Therefore, a reflective surface supported by a bistable composite material foldable cylindrical shell is developed. The bistable composite material foldable cylindrical shell is a cylindrical shell with a C-shaped cross section. The shell structure is made of elastic and expandable composite materials such as carbon fiber, which has rigid support capacity, can be rolled up in the axial direction, and can be folded and carried together with the reflective surface, but the existing connection method is not suitable for connecting the reflective surface with the bistable The foldable cylindrical shells of composite materials are connected, which prevents the bistable foldable cylindrical shells of composite materials from being folded in the axial direction, increasing the folded volume, so this proposal is proposed

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