Animation of pole movement of rigid rotor, showing precession, nutation and cylindrical modes

Movement of poles showing nutation, precession, cylindrical modes. Nutation and precession change with RPM

 

Animation of poles and zeros movements of unstable rigid rotor on AMB, with RPM

Movement of poles and zeros with RPM unstable AMB rotor

 

Animation of the pole movements of the unstable rigid rotor on AMB active magnetic bearings

Precession, Nutation and cylinder mode poles traveling on the S plane with increase in RPM

 

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