Sandwiched honeycomb structure of radome

A honeycomb structure and radome technology, which is applied to the radiation unit cover, antennas and instruments suitable for movable objects, etc., can solve the problems of honeycomb destruction of carrying capacity, reduction of honeycomb accumulation, and reduced electrical performance of honeycombs, so as to enhance the bearing capacity. Ability, good wave transmission performance, small weight effect

Active Publication Date: 2019-11-26
THE RES INST FOR SPECIAL STRUCTURES OF AERONAUTICAL COMPOSITE AVIC
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Problems solved by technology

Both methods have certain disadvantages. The electrical properties of the radome produced by the first method cannot meet the requirements of use at the solid part of the large curvature. The second method will cause the accumulation of honeycombs at the large curvature and reduce the electrical performance. Stress reduces the bearing capacity of the honeycomb and even destroys the honeycomb

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  • Sandwiched honeycomb structure of radome
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Embodiment Construction

[0014] In order to realize the electrical performance and carrying capacity of the right-angle radome area to meet the requirements of use, a radome sandwich honeycomb structure is proposed. The structure is as figure 1 As shown, it includes design thickness area 1, overlapping area 2, and slope transition area 3. During the production process of the radome, the transitional honeycomb is spliced ​​with the planar honeycomb 4 and the facade honeycomb 3, and adhesive film is used at the splicing seam solidified. The edges of the planar honeycomb 4 and the facade honeycomb 5 are processed to conform to the shape of the overlapping area 2 and the slope transition area 3 .

[0015] On the basis of the above-mentioned honeycomb structure, the angle between the cell direction of the transitional honeycomb structure and the plane of the radome is 30-60°, preferably 45°, and the honeycomb thickness in the design thickness area is the honeycomb thickness of the radome designed for elec...

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Abstract

The invention belongs to the technical field of composites and particularly relates to a sandwiched honeycomb structure of a radome. A transition honeycomb structure is arranged in a large-curvature area and comprises a design thickness area, an overlapping area and a slope transition area, and the transition honeycomb structure is integrally spliced with a planar honeycomb and a vertical honeycomb of the radome. With the adoption of the honeycomb structure, the electric performance requirement is met while the bearing capability of the honeycomb in a straight angle area is kept to the greatest extent. The overlapping area of the structure can enhance the bearing capability of the honeycomb overlapping position of the transition honeycomb under the action of pneumatic suction.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a radome sandwich honeycomb structure. Background technique [0002] With the improvement of electromagnetic wave-transmitting performance requirements, aircraft radomes mostly adopt honeycomb sandwich structure, and some aircraft radomes have relatively large local curvatures or even right angles. In the process of radome production, there are currently two solutions for the shape of the large curvature: one is to design a solid core structure for transition at the large curvature, and use pre-impregnated glass fiber laminates to cure; the other is to use external force to force The honeycomb deforms the transition here. Both methods have certain disadvantages. The electrical properties of the radome produced by the first method cannot meet the requirements of use at the solid part of the large curvature. The second method will cause the accumulation of ...

Claims

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Application Information

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IPC IPC(8): H01Q1/42H01Q1/28G01S7/02
CPCG01S7/02G01S7/027H01Q1/28H01Q1/42
Inventor 高俊福
Owner THE RES INST FOR SPECIAL STRUCTURES OF AERONAUTICAL COMPOSITE AVIC
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