PRODUCTION OF RESILIENT-LIKE AIRCRAFT MODELS AT NC MACHINE TOOLS Russian patent published in 2014 - IPC G01M9/08 B64F5/00 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to analysis of aircraft aeroelasticity in wind tunnel. In making of aircraft models at NC tools, preliminary and verification calculations of the frame mathematical model. Obtained results are used to produce the frame from steel of aluminium alloy by high-speed honing at NC tool with allowance for similarity of mass-inertia and stiffness characteristics of structural frame with that natural frame of aircraft. Bottom shaping surface of the model is machine together with structural frame at NC tool. To produce outer lines of the model shaping surface, fused material with low modulus of elasticity is sprayed on premade frame. Final shaping of the model upper airfoil is performed at high-speed low-moment honing at NC tool with the help of complete mathematical model.

EFFECT: high precision of geometrical similarity of the model airfoil and of mass-inertia and stiffness characteristics reproduction.

5 dwg