Damping decreases vibrations by removing energy through resistance to motion. For rotating equipment, damping is necessary to control vibrations and prevent them from damaging the rotor, bearings or other components in the machine.

Why is damping important?

Damping is a way to limit vibrations and is essential for protecting the system in which it operates. This is what happens with door or drawer springs, where damping prevents blows when opened/closed, preserving them and protecting the system.

Why is damping necessary in vibration?

Damping is of primary importance in controlling vibration response amplitudes under conditions of steady-state resonance and stationary random excitation. Damping also plays a crucial role in fixing the borderline between stability and instability in many dynamical systems.