Simultaneous Aerodynamic And Structural Design Optimization (SASDO) for a 3-D wing

Tile formulation and implementation of an optimization method called SimultaneousAerodynamic and Structural Design Optimization (SASDO) is shown as an extension ofthe Simultaneous Aerodynamic Analysis and Design Optimization (SAADO) tnethod. Itis extended by the inclusion of structure element sizing parameters as design variables andFinite Element Method (FEM) analysis responses as constraints. The method aims toreduce the computational expense incurred in performing shape and sizing optimizationusing state-of-the-art Computational Fluid Dynamics (CFD) flow analysis, FEM struc-tural analysis and sensitivity analysis tools. SASDO is applied to a simple, isolated, 3-Dwing in inviscid flow. Results show that the method finds the same local optimum asa conventional optimization method with sonic reduction in the computational cost andwithout significant modifications to the analysis tools.