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TsAGI Science Journal

ISSN Imprimir: 1948-2590
ISSN On-line: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.2018026351
pages 751-760

NONCONTACT MEASUREMENTS OF WING BOX DEFORMATION DURING STRENGTH TESTS BY VIDEOGRAMMETRY METHOD

Vladimir Petrovich Kulesh
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky Str., Zhukovsky, 140180, Russia
K. A. Kuruliuk
Central Aerohydrodynamic Institute (TsAGI), 1, Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russian Federation
Mikhail Aleksandrovich Fedotov
Central Aerohydrodynamic Institute (TsAGI), 1, Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russian Federation

RESUMO

Deformation measurements of a wing box prototype of medium-range civil aircraft were performed by the noncontact optical videogrammetry method. The prototype was made of a polymer composite material. Investigations were carried out during residual strength tests of the wing box. Loading was applied with a step of 10% of ultimate load in flight mode until failure. Distributed deformation fields of bending and twisting of the wing box were obtained for each loading step. The measurement error of normal deviations of surface points did not exceed 0.8 mm. It was shown that maximum bending of the wing tip section reached 290 mm just before destruction.


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