摘要
以F-22A飞机为代表的第四代战斗机强调隐身性能,机身和机翼高度融合,目标外形变得更加复杂,使得采用初等解析曲面组合的方法构建目标模型计算的目标近场散射特性误差增大。本文在Pro/E软件环境下采用自由曲面建模方法,建立了基于F-22A飞机照片和三视图中特征信息的F-22A目标精细化几何模型,该模型已在隐形目标近场散射特性的计算中得到应用。
The fourth generation fighter represented by F-22 A emphasizes on stealth performance,airframe and airfoil combine together highly,and the form of fighter becomes more complex,which increases the error of near-field scattering characteristic simulation result by using simple geometry to construct target model. In the Pro / E simulation environment,free-form surfaces are adopted to rebuild F-22 A target elaborate geometry model,based on characteristic from the three views and photos of F-22 A. This model has been used in near-field scattering characteristic simulation of stealth target.
出处
《航空兵器》
2015年第6期36-39,共4页
Aero Weaponry
关键词
目标模型
精细化建模
近场散射特性
target model
elaborate modeling
near-field scattering characteristic
