复合型雷达吸波材料结构优化设计的数值计算  

Numerical-Calculation Method in Optimizing Design for Structure of Multi-Layer RAM

作　　者：李超[1] 沈卫东[1] 邵锦萍[1] 宋思洪[1] 崔方[2] 

机构地区：[1]解放军重庆通信学院军事目标特征控制实验室,重庆400035 [2]山东省军区人民武装学校,济南250022

出　　处：《宇航材料工艺》2008年第5期12-16,共5页Aerospace Materials & Technology

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.

关 键 词：遗传算法 多目标优化 雷达吸波材料 

分 类 号：O241[理学—计算数学] TB34[理学—数学]