Wednesday, October 22, 2025

Animation of rigid body modes of a flywheel rotor

Nutation, forward whirl, Frequency decreases with RPM, damping is low, difficult to control as frequency is high.

Precession, backward whirl, reduces damping with RPM, frequency reduces with RPM, have to be actively controlled.

Pendulous mode, cylinder mode, does not depend on RPM, no gyroscopic effect, no tilting of disc

Pendulous mode, cylinder mode, does not depend on RPM, no gyroscopic effect, no tilting of disc

 

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