It is defined as the speed at which a rotating shaft will tend to vibrate violently...

 

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It is defined as the speed at which a rotating shaft will tend to vibrate violently in the transverse direction if the shaft rotates in horizontal direction ? transverse vibrations centrifugal force angular velocity O critical speed the disc is spinning with w rad/s (angular velocity) about the axis, then the couple applied to cause the precession will be O 1/2 lw2 lwwp 1/2 lwwp lw2 It is defined as the speed at which a rotating shaft will tend to vibrate violently in the transverse direction if the shaft rotates in horizontal direction ? transverse vibrations centrifugal force angular velocity O critical speed the disc is spinning with w rad/s (angular velocity) about the axis, then the couple applied to cause the precession will be O 1/2 lw2 lwwp 1/2 lwwp lw2