FIELD: aviation.
SUBSTANCE: invention relates to experimental study of dynamic phenomena of aeroelasticity of aircraft in wind tunnels. Dynamically similar aerodynamic model of support surface comprises a power-elastic beam spar, drained units installed in scale model-power beam spar, ribs, upper and lower section of casing, electro-energiser model for forced vibration model in stream, means for measuring amplitude frequency characteristics of model. Beam-side member is composed of a hollow core on which unidirectional monolayers over molded high modulus and high strength polymer composite material. Each unit of model is drained from one-piece rigid frame mounted with front and rear edge sensors dynamic pressure easily removable and upper and lower panels defined therein dynamic pressure sensors. Boarding model is a three-layer removable section of variable thickness.
EFFECT: invention aims at improving accuracy of experiment.
8 cl, 13 dwg
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