# Dynamic balancing without static balancing

## Main Question or Discussion Point

static balancing is when the center of gravity is in the axis of rotation.

dynamic balancing is when the central principal axis of inertia is parallel and coincident with the axis of rotation.

my question is, even if its theoretically, can you have dynamic balancing without static balancing?

If you have the center of gravity outside the axis of rotation but still have the central principal axis of rotation on and parallel with the axis of rotation, do you not have dynamic without static balancing?

Related Mechanical Engineering News on Phys.org
jedishrfu
Mentor
From experience with car tires, it seems that dynamic balancing is always better. If you statically balance the tires then at some certain speeds you'll get a wobbly feeling due to hitting the resonant frequency.

From experience with car tires, it seems that dynamic balancing is always better. If you statically balance the tires then at some certain speeds you'll get a wobbly feeling due to hitting the resonant frequency.
Thanks but still doesnt answer my question in a way.

Can you have dynamic without static

AlephZero