Next Generation Propeller Blades: +18% endurance for UAVs?

Compared to legacy UAV props in the 33 inch range, +18% more efficient prop shapes were found using the numerical shape optimization feature of Aeolus ASP. As we move torwards thinner airfoils and higher aspect ratio blades, aeroelasticity and manufacturing feasibility becomes increasingly challenging. We use FEM and numerical aeroelasticity analysis based on a week coupling of Aeolus ASP and NX Nastran, providing a feedback loop between aerodynamic loads and structural displacement.