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TsAGI Science Journal

ISSN Druckformat: 1948-2590
ISSN Online: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.2017019466
pages 649-663

FEATURES OF SIMULATING THE FORCE ACTIONS FROM A DAMAGED ENGINE AT GROUND VIBRATION TESTS OF AN AIRPLANE

Regina Vladimirovna Leonteva
Public Joint-Stock Company "Tupolev," 17, Academician Tupolev Embankment, Moscow, 105005 Russia
Vsevolod Igorevich Smyslov
Central Aerohydrodynamic Institute (TsAGI), Zhukovsky str. 1, Zhukovsky, 140180 Russia

ABSTRAKT

In this study, the features of the experimental methodology, variants of the implementation of force actions, assessment of the possibility of superposition of vibrations, and the experimental hardware were considered. A simulation of the inertial forces from an engine imbalanced due to blade loss during ground vibration tests (GVTs) was performed. The parameters of the forced airplane oscillations in the case of a non-rotating engine rotor were measured. Some results are presented. The first domestic experience of tests of full-scale airplanes with imbalance simulation has confirmed the possibility conducting regular GVTs.


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