Regina V. Leonteva
DOI Number: N/A
Conference number: IFASD-2015-158
Airplane vibration analysis during an engine blade loss flight depends on the mathematical model reliability. All the information to adjust the math model can be derived from ground vibration tests (GVT) with an engine imbalance force simulation. Force actions to the damaged engine include the rotating inertial force generated during tests and the gyroscopic moment. Experimental evaluation of possibility to replace the rotating force with two separate (vertical or horizontal) projections of this force is conducted, with further superposition of responses in processing of experimental data. Windmilling steady-state vibrations were measured. Experimental data of amplitude frequency response functions for accelerations at airplane structural points are presented.