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Method for manufacturing large-caliber high-precision antenna surface made of composite materials

A technology of composite materials and manufacturing methods, applied in antennas, electrical components, etc., can solve problems such as high cost, high energy consumption, and low efficiency, and achieve the effects of reducing manufacturing costs, speeding up engineering progress, and simplifying the molding process

Active Publication Date: 2014-02-05
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP +1
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Although the above molding method completes the preparation of high-precision composite antennas, it belongs to the manufacturing method of block manufacturing and overall assembly, which has the disadvantages of high cost, high energy consumption, and low efficiency.

Method used

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  • Method for manufacturing large-caliber high-precision antenna surface made of composite materials
  • Method for manufacturing large-caliber high-precision antenna surface made of composite materials
  • Method for manufacturing large-caliber high-precision antenna surface made of composite materials

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Embodiment Construction

[0050] Combine Figure 1 to 1 2. The present invention will be further explained below.

[0051] A method for manufacturing a large-aperture and high-precision composite material antenna surface. The antenna surface includes a large-diameter main reflecting surface 1 with a parabolic structure and a large-diameter main reflecting surface 1 placed on the back of the large-diameter main reflecting surface 1 Back frame 2, said back frame 2 is a spatial grid structure formed vertically and horizontally, and the spatial grid structure of back frame 2 matches the back of the large-diameter main reflecting surface 1 and is bonded by structural adhesive 3 to form The following large-aperture and high-precision composite antenna surface structure is as image 3 , 11 Shown; It is characterized in that: the forming method of the large-diameter main reflective surface includes the following steps:

[0052] ①Establish the curved surface mathematical model of the large-diameter main reflecting ...

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Abstract

The invention discloses a method for manufacturing a large-caliber high-precision antenna surface made of composite materials, and relates to an antenna reflection surface manufacturing technology in fields like satellite communications, wireless measurement and control, deep-space exploration and large-size radio telescopes. A main reflection surface is of a large-caliber paraboloid structure and is integrally formed on a mold according to a composite material vacuum filling technology. A back frame is of a composite material foam sandwich structure and is a supporting body provided with a space lattice structure and formed by cross ribs and longitudinal ribs in a longitudinal and cross orthogonal mode. Through the method, the large-caliber high-precision antenna reflection surface can be successfully manufactured and has the advantages of being light in weight, large in rigidity, good in vibration resisting performance and high in production efficiency, wherein the caliber phi of the antenna reflection surface is larger than 10m, and the precision delta of the antenna reflection surface is 0.3mmRMS.

Description

Technical field [0001] The invention relates to the field of antenna reflective surface manufacturing engineering, in particular to an integral molding manufacturing technology of a large-caliber and high-precision composite material antenna surface. Background technique [0002] The development of communication technology and the urgent need for deep space exploration require the radar antenna reflecting surface to have the characteristics of high precision and large diameter. In the field of radar antenna manufacturing engineering, the fiber reinforced composite material reflecting surface is light weight, high specific rigidity, and specific strength. The advantages of large size, high precision, and good designability more replace traditional metal reflective surfaces. The existing high-precision composite antenna reflective surfaces are mostly small-caliber reflective surfaces prepared by the autoclave molding process. How to use the advantages of composite materials to desi...

Claims

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Application Information

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IPC IPC(8): H01Q15/16
Inventor 王海东梁赞明郑元鹏金超杜彪刘利文冯贞国刘国玺李金良王亚楠秦泽云
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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