Difference between Static and Dynamic Balancing
1. Static Balancing: It is the balancing of the mass of a body so that it stays stationary at any
position without rotating.
Dynamic Balancing: It is the balancing of a rotating body so that there are no unbalanced dynamic
forces or moments.
2. Static Balancing: Occurs when the center of gravity is on the axis of rotation.
Dynamic Balancing: Occurs when both the center of gravity and the mass moment are balanced
around the axis.
3. Static Balancing: Removes force imbalance only.
Dynamic Balancing: Removes both force and couple (moment) imbalance.
4. Static Balancing: Used when the body rotates slowly or is stationary (e.g., wheels, pulleys).
Dynamic Balancing: Used for high-speed rotating parts (e.g., turbines, crankshafts).
5. Static Balancing: Done without rotating the part.
Dynamic Balancing: Requires rotation and measurement of vibration or imbalance.
6. Static Balancing: Simpler and easier to perform.
Dynamic Balancing: More complex and requires advanced instruments.
7. Static Balancing: Balancing of ceiling fan blades or grinding wheels.
Dynamic Balancing: Balancing of engine crankshafts, rotors of electric motors.
