摘要
基于多层复合型雷达吸波材料的设计要求构造了多目标优化的模型，将基本遗传算法（SGA）改进为自适应-混合遗传算法（MAHGA），通过数值计算为多层雷达吸波材料的结构优化提供了依据，依据计算结果制备了多层复合雷达吸波材料并进行了反射率和电磁参数测试实验，实验结果与计算结果吻合较好，复合材料具有良好的吸波性能，在8～18GHz低于-10dB的带宽可达7．8GHz，最大衰减量为-34．6dB，总厚度为3．5mm。
The multi-object optimization model was formed based on the requirements of design for multi-layer eompositing RAM. The basis was provided for structure optimizing of multi-layer RAM by numerical calculating based on Mended Hybrid-Adaptive Genetic Algorithm （MAHGA） which was improved from Simple Genetic Algorithm （SGA）. The multi-layer RAM was made according to the result of calculating, the experiment of its electromagnetic parameters was conducted, the result was consistent with that of numerical calculating. The capability of radar-wave absorbing was proved well. The maximal reflection of eompositing materials for radar-wave is - 34.6 dB with the width of 7.8 GHz below -10 dB in 8 -18 GHz, and the thickness of compositing material is 3.5mm.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2008年第5期12-16,共5页
Aerospace Materials & Technology
