Hybrid fiber radome

A technology of mixed fiber and radome, which is applied in the field of radome, can solve the problems of heavy weight, unsatisfactory weight requirements, high metal rigidity, etc., and achieve the effect of light weight and good electromagnetic wave penetration performance

Inactive Publication Date: 2019-03-19
THE RES INST FOR SPECIAL STRUCTURES OF AERONAUTICAL COMPOSITE AVIC
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  • Claims
  • Application Information

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Problems solved by technology

At present, the metal protective layer is usually wrapped outside the search and rescue communication equipment, but the metal protective layer not only seriously affects the positioning function of the antenna, but also increases the difficulty of searching, and the metal has high rigidity, absorbs less energy, and has poor vibration reduction effect. In addition, the metal density Large and heavy, usually does not meet design weight requirements

Method used

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  • Hybrid fiber radome

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Embodiment Construction

[0014] The technical scheme of the present invention will be further described below in conjunction with accompanying drawing:

[0015] see figure 1 First, the inner skin of the radome is formed. The inner skin is laminated by Kevlar fiber layer and glass fiber layer in the form of interlayer mixing. After the layering is completed, it is cured and formed in an autoclave;

[0016] see figure 1 , place the processed foam core layer on the glass fiber layer of the inner skin, and solidify and form it in an autoclave;

[0017] see figure 1 , the middle skin is laid on the outer surface of the foam core layer, the middle skin is a simple glass fiber layer, and after the laying is completed, it is cured and formed in an autoclave;

[0018] see figure 1 , place the processed foam core layer on the middle skin, and solidify and shape it in an autoclave;

[0019] see figure 1 The outer skin is laid on the outer surface of the foam core layer. The outer skin is laminated by glass...

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Abstract

The invention belongs to the field of radomes, in particular to a hybrid fiber radome. The radome has a C-type sandwich structure composed of an inner skin, a foam core layer, a middle skin, a foam core layer and an outer skin, wherein the inner skin and the outer skin contain a Kevlar fiber layer and a glass fiber layer, and the two fibers are laid by adopting a sandwich hybrid mode; the middle skin is a pure glass fiber layer; and the isotropic and low-density foam core layers are adopted between the inner skin and the middle skin and between the middle skin and the outer skin. The problemsof strength and electromagnetic transmission of search and rescue communication equipment after high-altitude projection can be solved, and the hybrid fiber radome can bear the falling impact load upto 3500J, absorb impact energy, play a role of vibration isolation and vibration reduction, has good electromagnetic transmission performance and meets the antenna positioning function. Besides, themain body of the hybrid fiber radome is a composite material, the weight is light, and the weight can be effectively reduced.

Description

technical field [0001] The invention belongs to the field of radome, and in particular relates to a hybrid fiber radome. Background technique [0002] After a plane crashes, professionals can analyze the accident through flight technical parameters and communication information, which are usually recorded by specific aviation search and rescue communication equipment. In order to facilitate the search after the accident, the search and rescue communication equipment is equipped with a positioning antenna, and the investigators use a specific receiver to search and find the signal to determine the location. After the search and rescue communication equipment is ejected from the aircraft, if it falls on the land, it will generate a huge crash impact load. Therefore, corresponding protective measures must be taken. At present, the metal protective layer is usually wrapped outside the search and rescue communication equipment, but the metal protective layer not only seriously a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/42
CPCH01Q1/422H01Q1/424
Inventor 王敏杨海滨李兴德
Owner THE RES INST FOR SPECIAL STRUCTURES OF AERONAUTICAL COMPOSITE AVIC
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