Wingbox adaptive parametric modeling and its application to structural optimization.

The research presented in this paper is focused on development of an adaptive wingbox geometric model and wingbox structural optimization. The aerodynamic wing shape is defined with a set of parameterized NACA airfoils, but in general wingbox components can adapt to any closed wing skin surface. The implemented parametric model allows easy variation of different wingbox internal structural components e.g. number and location of ribs/spars/stringers, their shape, thicknesses etc. Flexibility of the model allows the use of numerical optimization for automatized design improvement, considering structural design goals. The two-level optimization process is proposed, aimed to find the global optimal layout of the wingbox at the first level, and to refine subcomponents design (e.g. ribs) at the second level.     «

The research presented in this paper is focused on development of an adaptive wingbox geometric model and wingbox structural optimization. The aerodynamic wing shape is defined with a set of parameterized NACA airfoils, but in general wingbox components can adapt to any closed wing skin surface. The implemented parametric model allows easy variation of different wingbox internal structural components e.g. number and location of ribs/spars/stringers, their shape, thicknesses etc. Flexibility of t...     »