FAST PARAMETRIC STRUCTURE MODELING FOR VARIETY OF AIRCRAFT CONFIGURATIONS

Common parametric modeling is essential for aircraft design optimization process. It not only affects quality of the mesh, but also decides how efficiently the model can be updated. Based on most of the CAD models generated by the current methods, the preprocess is inevitable before mesh generation and design zones division is not so easy. In this work, we propose a new way of parametric structure modeling for variety of aircraft configurations, which is noted as surface discretization modeling method. The CAD model is a combination of the discretized pieces corresponding to the design zones, then the preprocess is not necessary and quality of the mesh can be easily improved. The proposed method is firstly validated by modeling a tailless fighter and compared with the refined model by hand, which obtains the satisfactory accuracy. Then the efficiency and practicality of this method is further demonstrated by the applications of the supersonic transport (SST), the tailless fighter and the flying-wing bomber.