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Eigen-modes of four-planets gearing box
Půst, Ladislav ; Pešek, Luděk ; Radolfová, Alena
The report is oriented on influence analysis of planet pins compliance on the frequency and modal spectrums of gearing box. The assumptions of mathematical model of four-planets gearing are: Lumped, stiff bodies of gear wheels, linear stiffness of planet’s pins as well as all wheel axes. Contact stiffness in gearings are modelled by average values with neglecting of periodic variability. All wheels moves in plane. Frequency spectrum of dynamic model with 16 degrees of freedom contains multiple eigen-frequencies. Computations of frequency and modal spectra are realized in the programme base Matlab.

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