DYNAMICALLY SIMILAR MODEL FOR WIND TUNNEL TESTING Russian patent published in 2024 - IPC G01M9/08 

FIELD: aviation technology.

SUBSTANCE: invention concerns, in particular, the problems of designing and manufacturing dynamically similar models for experimental studies of the aeroelasticity of aircraft in wind tunnels (WT). A dynamically similar model for testing in a wind tunnel comprises a power core, casings made in the form of compartments that transmit aerodynamic loads to the power core, mounting locations on the core and/or in compartments for installing variable loads, and is assembled as a single structure of a closed aerodynamic shape. The device additionally comprises an engine simulator, attached to the power core by means of a pylon spring, consisting of an annular body, a central body and a quick-release cup, designed to accommodate replaceable loads that simulate the mass-inertial characteristics of the engine. The quick-release cup is fixed inside the central body using a quick-release connection, and the central body is rigidly fixed inside the annular body.

EFFECT: universality in terms of modelling various engines that are similar in overall characteristics and differ in mass-inertial characteristics, as well as the efficiency of changing mass-inertial characteristics during the experiment.

3 cl, 3 dwg