- Damping is an effect that causes a reduction in the amplitude of an oscillation as a result of energy being drained from the system to overcame frictional/other Resistive forces.
- These are the systems in which kinetic friction is zero. Technical Name of Kinetic friction in any Vibrations system is known as, Damping.
Damping in Any System:
Types of damping systems
Overdamped System(ζ>1): No vibrations will be present in an over-damped system:
Critically Damped Systems(ζ=1):
Note: Critical damping response is much faster than overdamping response i.e. in critically-damped systems, the body once displaced comes into its Equilibrium Position much faster than that in overdamped systems.
Under Damped Systems (ζ < 1):
Hence, the Amplitude of under-Damped Vibrations is not constant and it decreases exponentially w.r.t. time.
Logarithmic Decrement (δ ):
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