A型蒙皮复合蜂窝结构设计及其吸波性能

邢孟达; 马向雨; 宫元勋; 吕通; 李策; 赵宏杰

doi:10.13801/j.cnki.fhclxb.20210414.003

A型蒙皮复合蜂窝结构设计及其吸波性能

doi: 10.13801/j.cnki.fhclxb.20210414.003

航天特种材料及工艺技术研究所，北京 100074

详细信息

通讯作者:
邢孟达，硕士，高级工程师，研究方向为吸波复合材料　E-mail：xingmengda@163.com

中图分类号: TM25
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出版历程
- 收稿日期: 2021-03-19
- 修回日期: 2021-04-01
- 录用日期: 2021-04-09
- 网络出版日期: 2021-04-14
- 刊出日期: 2021-03-01

Design and wave absorbing properties of honeycomb with A-type skin

Aerospace Institute of Advanced Material & Processing Technology, Beijing 100074, China

摘要

摘要: 针对引入蒙皮材料导致吸波蜂窝26.5~40 GHz频段吸波性能退化的问题，对蒙皮的结构进行了改进设计，研究了A型蒙皮结构对多层蜂窝吸波性能的影响机制及规律，并得到了最优的蒙皮结构参数。研究结果表明，设计的A型结构，可有效改善蒙皮的高频段透波性能。随着A型蒙皮中透波蜂窝厚度的增加，复合吸波蜂窝在2~18 GHz频段内的吸波性能保持在相当的水平，在26.5~40 GHz波段吸波性能先升高后降低，透波蜂窝的最优厚度为2 mm。基于5种不同电磁特性的吸波蜂窝片材料，设计制备的具有0.3 mm石英布/2 mm透波蜂窝/0.3 mm石英布蒙皮结构的复合蜂窝在2~18 GHz及26.5~40 GHz的超宽频带内具备优异的吸波性能，与仿真优化结果保持一致。
- 吸波蜂窝 /
- A型蒙皮 /
- 宽频 /
- 反射率 /
- 阻抗匹配
Abstract: In order to solve the problem of wave absorption performance degradation in the 26.5-40 GHz frequency band caused by the introduction of skin material, the design of the skin structure was improved, the influence mecha-nism and law of A-type skin structure on the wave absorption performance of multi-layer honeycomb were studied, and the optimal structure parameters of A-type skin were obtained. The research results show that the A-type skin can improve the high frequency wave-transmitting property effectively. With the thickness of the honeycomb increasing, the reflectivity in the 2-18 GHz frequency band remains at the same level and the reflectivity in the 26.5-40 GHz frequency band increases at first and then decreases. The optimal thickness of the honeycomb is 2 mm. Based on five kinds of absorbing honeycomb sheets, the composite honeycomb was designed and prepared with the structure of quartz cloth (0.3 mm)/wave-transmitting honeycomb (2 mm)/quartz cloth (0.3 mm). The optimized absorbing honeycomb has excellent absorbing property in the wide frequency band of 2-18 GHz and 26.5-40 GHz, which is corresponding to the simulation result.
- absorbing honeycomb /
- A-type skin /
- broadband /
- reflectivity /
- impedance matching

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图 1 不同规格吸波蜂窝材料的电磁参数

Figure 1. Electromagnetic parameters of different absorbing honeycombs

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图 2 吸波蜂窝复合石英/环氧蒙皮前后的反射率

Figure 2. Reflectivity of absorbing honeycomb with and without quartz/epoxy skin

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图 3 A型蒙皮结构示意图

Figure 3. Schematic drawing of A-type skin

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图 4 A型蒙皮反射率曲线

Figure 4. Reflectance curve of A-type skin

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图 5 A型蒙皮复合吸波蜂窝结构

Figure 5. Structure of absorbing honeycomb with A-type skin

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图 6 吸波蜂窝复合A 型蒙皮后的反射率曲线

Figure 6. Reflectance curve of absorbing honeycomb with A-type skin

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图 7 A型蒙皮复合吸波蜂窝的反射率测试值

Figure 7. Reflectance values of absorbing honeycomb with A-type skin

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表 1 不同规格吸波蜂窝的增重比率

Table 1. Mass gain rate of different absorbing honeycombs

Sample number Mass gain rate/%

F-1 6
F-2 12
F-3 25
F-4 50
F-5 90

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表 2 各层吸波蜂窝材料的厚度

Table 2. Thickness of each layer for absorbing honeycomb

Number of plies Sample number Thickness/mm

1 F-1 3.8
2 F-2 4.2
3 F-3 5.3
4 F-4 3.9
5 F-5 6.8

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