TO deal with the problem between the aerodynamic and stealth integrated design of a flying wing configu -ration, the investigation based on the different optimal objectives and constrains of the inner and outer wing is car -ried out .The improved Hicks-Henne parametric method is used to parametric airfoils; CFD calculation based on RANS equations is used to analyze the aerodynamic performance of the airfoils , physical optical method and Incre-mental length diffraction coefficients method are used to calculate RCS of the airfoils;Rank altered differential par-ticle swarm optimization is adopted for integrated design .The results of airfoils ' aerodynamic and stealth integrated optimization exhibit considerable improvement , it shows that the essay has good practicability .%针对飞翼布局翼型气动隐身综合设计问题,开展基于飞翼布局内外翼不同设计要求的翼型气动隐身综合优化研究.采用改进后的Hicks-Henne参数化方法实现翼型的参数化表达;分别采用基于雷诺平均N-S方程求解的计算流体力学方法及物理光学法和增量长度绕射系数法为基础的RCS分析方法计算翼型的气动、隐身性能;选择分层交换差分粒子群算法进行综合寻优设计研究.优化后的翼型兼顾了气动与隐身的要求,其综合性能优于原始翼型,满足飞翼布局的设计要求.结果表明该方法具有较好的实用性.
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