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对于飞翼布局的飞行器,棱边的数量、长度、位置等因素影响着它的隐身性能。数值化地描述这些棱边关系并建立他们和隐身特性之间的联系,能够给飞行器综合一体化设计提供参考,为优化设计确认目标函数,提出了基于飞翼平面布局的棱边平行度数值化描述方法,根据建立的棱边关系和平行度之间的计算公式,分析了飞翼布局中棱边的数量、长度、位置等对平行度的影响。采用创建特征模型的方法,计算各个特征布局的雷达散射截面(RCS),结合所提出的平行度,给出了平行度与隐身特性之间的对应关系曲线并归纳了隐身特性对平行度的敏感度。总结出了通过增大平行度来提高隐身特性可以采取的措施,以及布局方案细微调整时需要注意的极值点。
For flying wing layout of the aircraft, the edge of the number, length, location and other factors affect its stealth performance. The numerical description of these edge relationships and the establishment of their relationship with stealth features can provide a reference for the integrated aircraft design. In order to confirm the objective function for the optimization design, the parallelization of wing parallelism based on the plane layout of the flying wing is proposed Describe the method and analyze the influence of the number, length and position of the edges on the parallelism of the flying wing based on the formula of the relationship between the edges and the parallelism established. The method of creating feature model is used to calculate the radar cross section (RCS) of each feature layout. Combined with the proposed parallelism, the correspondence between parallelism and stealth characteristics is given and the sensitivity of stealth characteristics to parallelism degree. Summed up the steps that can be taken to increase stealth characteristics by increasing the parallelism and the extreme points that need attention when finely adjusting the layout scheme.