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The vibration of prototype aircraft propeller speed reduction unit – test bench and FEM numerical simulation study

Ostapski W., Aromiński A., Dowkontt S.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2014

Vol. 62, nr 4

861--873

The results of torsional shaft vibration bench tests for a prototype aircraft propeller speed reduction unit are presented in this paper. The study was conducted as a function of engine speed and lubrication conditions. 3D model of the propeller speed reduction unit was developed. By using the finite element method, normal modes frequencies were defined. The simulation was conducted both unloaded and loaded under nominal power conditions.