摘要
应用有限元数值计算方法结合吸收边界条件,对结构型吸波材料的隐身特性计算进行了算法分析研究;并据分层组配方案对二维层合板SRAM结构(二层和三层结构)的雷达散射截面进行计算,得到最优隐身特性的组配方案;最后对波纹板SRAM结构、波纹板斜面与底板夹角变化对雷达散射截面的影响进行了计算分析,得出正趋势的结论。
By using finite element method combined with absorbing boundary conditions, the numerical calculation of stealth properties of structural radar absorption materials (SRAMs) is studied. Based on the layer and combination program, radar cross-section (RCS) of 2D two-and three-layered SRAM structures is calculated to a chieve an optimal combination design of stealth properties. Finally, the influence of angle change between ripple and bottom board of rippled SRAM structure on RCS is analyzed and a positive tendency is obtained.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2004年第6期16-19,共4页
Aerospace Materials & Technology
