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基于CFD/CSD耦合数值计算,以升力特性为优化目标,采用响应面算法优化光固化树脂材料的轻质F4风洞模型构型,寻得6个优化解,并采用光固化快速成型技术(SL)制作这6个F4风洞实验模型。实验结果表明:6个模型升力特性与国外静气动弹性修正后的结果较接近(特别是6#模型最为接近机翼弹性变形的三维效果),初步证明该文发展的气动/结构耦合优化设计方法基本可行,既为基于SL技术的轻质模型高速风洞应用提供了支持,又为多气动参数的飞行器气动/结构耦合优化和风洞试验数据静弹性修正建立了工作基础。
Based on CFD / CSD coupling numerical calculation and optimization of lift characteristics, a response surface method was used to optimize the light F4 wind tunnel model of light-cured resin materials. Six optimization solutions were obtained and the light-cured rapid prototyping (SL ) The six F4 wind tunnel experimental models were produced. The experimental results show that the lift characteristics of the six models are close to those of the modified static-dynamic elasticity (especially the 6-dimensional model is most close to the three-dimensional effect of wing elastic deformation), which proves the aerodynamic / structural coupling optimization design method It is basically feasible to provide support for the application of lightweight model wind tunnel based on SL technology and the foundation of aerodynamic / structural coupling optimization of aerodynamic parameters of aircraft and static elasticity correction of wind tunnel test data.