High-rigidity radome structure for counteracting aerodynamic suction effect

Abstract

The invention discloses a high-rigidity radome structure for counteracting an aerodynamic suction effect. The radome structure comprises a skin, a perforated honeycomb, an antenna and a U-shaped sealing element; the skin is arranged outside the antenna, and a vacuum cavity is formed between the skin and the antenna; the perforated honeycomb is arranged in the vacuum cavity; two symmetrical U-shaped sealing pieces are arranged on the edge of the root of the perforated honeycomb; openings of the two U-shaped sealing pieces are connected; the vacuum cavity is completely sealed; a gas valve is mounted on each U-shaped sealing piece; a thickening part is arranged in the root area of the skin; the outer skin of a radome is supported by a honeycomb; when the radome is subjected to pneumatic pressure; the radome skin and the filling honeycomb are supported by an internal antenna, and thus the aerodynamic shape of the radome is maintained and the electromagnetic wave transmittance of the radomeis improved; through honeycomb internal vacuumizing and preset inward suction force, when the outer surface of the radome is subjected to pneumatic suction force, internal vacuum counteracts part ofpneumatic suction force outside the radome, the bearing capacity of the radome is improved, and deformation of the radome is reduced.

Description

technical field

[0001] The invention relates to the field of radome manufacturing, in particular to a large-rigidity radome structure that counteracts the aerodynamic suction effect. Background technique

[0002] Aircraft radomes are structural and functional integrated structural parts. In order to meet the improvement of electromagnetic wave transmission performance of military aircraft, many radomes have thin wall thickness and low stiffness. service life, and at the same time cannot maintain the original aerodynamic shape, which affects the execution of military aircraft tasks.

[0003] At present, the method of increasing the rigidity of the radome mainly includes: adding ribs and ribs on the inner surface of the radome. The ribs and ribs are generally solid laminated structures, which are heavy and complicated in manufacturing process, and cannot be co-cured with the radome. One-piece molding, in order to achieve the effect of increasing rigidity, it needs to reach a ...

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