DYNAMICALLY SIMILAR AERODYNAMIC SURFACE MODEL Russian patent published in 2020 - IPC G01M9/08 G01M5/00 

FIELD: aviation.

SUBSTANCE: invention relates to the field of aircraft engineering and concerns, in particular, experimental studies of aeroelasticity of aircraft in wind tunnels using dynamically similar shutoff-girder models of detachable wing part. Dynamically similar model of aerodynamic surface includes power core and compartments having inner cavities, outer surface of which is geometrically similar to shape of simulated aerodynamic surface, transmitting aerodynamic loads to power core, wherein the compartments are made of a low-modulus material to form a simulated aerodynamic surface, inside the compartments there are inner cavities with detachable covers for arrangement of replaceable weights and equipment, local platforms for fixing the covers to the compartment, compartments contain X-shaped ribs with attachment point to the power core in the central part of the rib and diagonal ribs of variable thickness going from the said attachment point to the compartment angles.

EFFECT: technical result is higher accuracy of simulation of mass-inertia characteristics of detachable part of wing, simplified design, reduced share of "manual" labor.

5 cl, 3 dwg