CN106887711B - Connection method of radar antenna reflector and bistable composite foldable cylindrical shell - Google Patents

Abstract

A kind of connection method of radar antenna reflecting surface and bistable state composite material telescopic column shell, belong to space based radar technical field, solve the problems, such as that existing foldable deployable antenna exists, it includes to be connect space based radar antenna reflective face with bistable state composite material telescopic column shell using aramid fiber rope and aramid fabric, along aramid fiber rope, muti-piece aramid fabric is set, aramid fabric is arranged at intervals on the opposite sides of aramid fiber rope, the midline position of aramid fabric is aligned with aramid fiber rope, aramid fabric and aramid fiber rope suture connection and be bonded, the total quantity of aramid fabric is odd number block, wherein the aramid fabric of odd number is Nian Jie with reflecting surface, wherein the aramid fabric of even number is Nian Jie with bistable state composite material telescopic column shell, aramid fiber rope is arranged between the aramid fabric of odd number and reflecting surface, aramid fiber rope is also disposed between the aramid fabric of even number and bistable state composite material telescopic column shell simultaneously；The present invention is used for space based radar antenna reflective face.

Description

Connection method of radar antenna reflector and bistable composite foldable cylindrical shell

technical field

The invention belongs to the technical field of space-based radar, and in particular relates to a method for connecting a radar antenna reflection surface and a bistable composite material foldable cylindrical shell.

Background technique

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. ; Large-scale phased array planar antennas with a length of 100 meters and an area of hundreds of square meters are 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 curled and folded on the ground. The existing foldable and unfolded antennas mainly have two support and unfolding methods, mechanical and inflatable. The mechanical structure is complex and the weight is relatively large. The inflatable antenna is greatly affected by the air temperature and heats up. The expansion and contraction are obvious, and the stability after expansion is not ideal, so a reflective surface supported by a bistable composite foldable cylindrical shell is developed. The bistable composite foldable cylindrical shell is a column with a C-shaped cross section. The shell structure is made of elastic and foldable composite materials such as carbon fiber, which has rigid support ability, and can be rolled along the axial direction, and can be folded and carried along with the reflective surface, but the existing connection method is not suitable for the reflective surface and the bistable. The foldable and unfoldable cylindrical shell of composite material is connected, which prevents the foldable and unfolded cylindrical shell of bistable composite material from being folded in the axial direction after the connection, so that the volume after folding is increased, so this scheme is proposed.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the above-mentioned problems existing in the existing foldable and unfolded antenna, and provide a connection method between the reflector of the radar antenna and the bistable composite material foldable and unfoldable cylindrical shell, and its technical scheme is as follows:

A method for connecting a radar antenna reflection surface and a bistable composite material foldable cylindrical shell, which comprises using aramid rope and aramid cloth to connect a space-based radar antenna reflection surface and a bistable composite material foldable cylindrical shell , Arrange multiple aramid fabrics along the aramid rope, the aramid fabrics are arranged on opposite sides of the aramid rope at intervals, the center line of the aramid fabric is aligned with the aramid rope, and the aramid fabric and the aramid rope are sewed and connected and bonded , the total number of aramid fabrics is an odd number of pieces, of which the odd-numbered aramid fabrics are bonded to the reflective surface, the even-numbered aramid fabrics are bonded to the bistable composite foldable cylindrical shell, and the aramid ropes are arranged in odd-numbered Between the aramid fabric and the reflective surface, and at the same time, the aramid rope is also arranged between the even number of aramid fabrics and the bistable composite material foldable cylindrical shell.

The beneficial effects of the invention are as follows: not only is the connection firm, but also the bistable composite material foldable cylindrical shell can be smoothly folded along the axial direction with the reflective surface after the connection, thereby reducing the folded volume and facilitating transportation.

Description of drawings:

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the exploded schematic diagram of Fig. 1;

Figure 3 is a schematic diagram of the positional relationship between odd and even aramid fabrics and aramid ropes;

FIG. 4 is a schematic diagram of the folding and folding of the bistable composite material collapsible cylindrical shell.

Detailed ways:

Referring to Figures 1 to 4, a method for connecting a radar antenna reflective surface and a bistable composite foldable cylindrical shell includes using aramid rope 1 and aramid cloth 2 to connect the space-based radar antenna reflective surface 3 to the dual The stable composite material foldable column shells 4 are connected, and a plurality of aramid fabrics 2 are arranged along the aramid rope 1, and the aramid fabrics 2 are arranged at intervals on opposite sides of the aramid rope 1. The aramid rope 1 is aligned, the aramid cloth 2 and the aramid rope 1 are sewed and connected and bonded. The total number of aramid cloth 2 is an odd number, of which the odd aramid cloth 2 is bonded to the reflective surface 3, and the even number aramid The cloth 2 is bonded to the bistable composite material foldable cylindrical shell 4, the aramid rope 1 is arranged between the odd-numbered aramid cloth 2 and the reflective surface 3, and the aramid rope 1 is also arranged between the even-numbered aramid cloth 2 and the reflective surface 3. Between the bistable composite material collapsible cylindrical shells 4 .

Claims (1)

1. a method for connecting a radar antenna reflecting surface and a bistable composite material foldable cylindrical shell, characterized in that it comprises using aramid rope (1) and aramid cloth (2) to connect the space-based radar antenna reflecting surface ( 3) Connected to the bistable composite material foldable cylindrical shell (4), a plurality of aramid fabrics (2) are arranged along the aramid rope (1), and the aramid fabrics (2) are arranged on the aramid rope (1) at intervals. On the opposite sides of the aramid fabric (2), the center line of the aramid fabric (2) is aligned with the aramid cord (1). The number is an odd number of pieces, wherein the odd-numbered aramid fabrics (2) are bonded to the reflective surface (3), and the even-numbered aramid fabrics (2) are bonded to the bistable composite foldable cylindrical shell (4), The aramid cords (1) are arranged between the odd-numbered aramid fabrics (2) and the reflective surfaces (3), and the aramid cords (1) are also arranged between the even-numbered aramid fabrics (2) and the bistable composite material to be foldable. between the cylindrical shell (4).