Crown-shaped composite material honeycomb interlayer antenna housing and forming tool and method thereof

A technology of composite material and honeycomb interlayer, which is applied in the direction of antenna, antenna parts, radiating unit cover, etc., to achieve the effect of reducing weight, improving wave transmittance and high electrical performance

Pending Publication Date: 2021-12-07
航天海鹰(镇江)特种材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it is difficult for the existing radome to meet the above design requirements at the same time. Therefore, the development of new aerospace materials and the exploration of new processes have become the key to the development of radome manufacturing technology.

Method used

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  • Crown-shaped composite material honeycomb interlayer antenna housing and forming tool and method thereof
  • Crown-shaped composite material honeycomb interlayer antenna housing and forming tool and method thereof

Examples

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Effect test

Embodiment 1

[0033] This embodiment is a crown-shaped composite material honeycomb sandwich radome and its forming process.

[0034] The radome described in this embodiment is made of composite material and honeycomb sandwich, which includes a casing part and a cover edge; and the casing part is provided with a honeycomb sandwich layer 1, and the cover edge is provided with glass fiber reinforcement Layer 2. That is, the material of the radome wall is made of wave-transparent composite material glass fiber, and the middle and crown parts are designed with a honeycomb sandwich. The two materials have low dielectric constants, and the reflection of electromagnetic waves on the radome wall is small. The high wave rate can ensure the required mechanical strength without affecting the wave transmittance, and at the same time greatly reduce the weight of the radome, which is beneficial to the lightweight design of aircraft and other aerospace vehicles. Specifically, the cover part includes the ...

Embodiment 2

[0045] The radome made in Example 1 was tested for electrical properties (wave transmittance), weight, etc., and the radome prepared in the same molding method as the radome in Example 1 did not have a honeycomb layer (that is, all three layers were made of glass). Fiber material) radome as a comparative example for comparison. The results are shown in Table 1.

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Abstract

The invention discloses a crown-shaped composite material honeycomb interlayer antenna housing and a forming tool and method thereof. The antenna housing is made of a composite material and a honeycomb interlayer and comprises a housing shell part and a housing edge part; the housing shell part is provided with a honeycomb sandwich layer, and the housing edge part is provided with a glass fiber reinforced layer, so that the required mechanical strength is achieved under the condition that the wave transmission rate is not influenced, the weight of the antenna housing is greatly reduced, and the lightweight design is facilitated; according to the antenna housing forming tool, a flexible cover plate is adopted for assisting a male die assembly to form the antenna housing, the flexible cover plate is good in shape follow-up performance, the inner surface of the flexible cover plate is made of the carbon fiber fabric, the appearance smoothness and the molded surface precision of the antenna housing can be guaranteed, and concaves and rubber edges are effectively prevented from being generated on the surface of an antenna; the male die is provided with a demolding ejection device, so that demolding is facilitated; and the antenna housing forming tool is used for antenna housing forming, the method is simple, the effect is remarkable, and the antenna housing forming tool has very good use value.

Description

technical field [0001] The invention relates to a crown-shaped composite material honeycomb sandwich radome and its forming tooling and method. Background technique [0002] With the development of modern wireless communication technology, the application of multifunctional communication systems is becoming more and more extensive, which puts forward higher requirements for the design and manufacture of radome. The radome is a shell structure covering the antenna, which integrates high wave transmittance and mechanical protection, protects the antenna system from the external environment, and provides a safe and reliable working environment for the antenna system. A working antenna prolongs the service life and makes the siting of the antenna system more flexible. Therefore, the radome not only bears the effect of aerodynamic load, but also meets the requirements of aerodynamic shape and wave-transmitting performance. [0003] Since the outdoor antenna system usually works...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/42B29C70/34B29C70/54
CPCH01Q1/422B29C70/342B29C70/54
Inventor 林丽萍马秀菊黎玉钦姚博卿曹习飞孙成姚海涛任慧敏
Owner 航天海鹰(镇江)特种材料有限公司
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