What is damping?

Damping

In physics, damping is an effect that reduces the amplitude of oscillations in an oscillatory system (except for mass-dominated systems where √2), particularly the harmonic oscillator. This effect is linearly related to the velocity of the oscillations. This restriction leads to a linear differential equation of motion, and a simple analytic solution.

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Some articles on damping:

Damping - Alternative Models
... Viscous damping models, although widely used, are not the only damping models ... One is the so called "hysteretic damping model" or "structural damping model" ... When a metal beam is vibrating, the internal damping can be better described by a force proportional to the displacement but in phase with the ...
Logarithmic Decrement
... Logarithmic decrement, δ, is used to find the damping ratio of an underdamped system in the time domain ... The damping ratio is then found from the logarithmic decrement The damping ratio can then be used to find the natural frequency ωn of vibration of the system from the ... logarithmic decrement becomes less and less precise as the damping ratio increases past about 0.5 it does not apply at all for a damping ratio greater than 1.0 ...
Magnetic Damping
... Magnetic Damping is a form of damping that occurs when a magnetic field moves through a conductor (or vice versa) ...
Coulomb Damping - Theory
... Coulomb damping dissipates energy constantly because of sliding friction ... The system undergoing Coulomb damping is periodic or oscillating and restrained by the sliding friction ... A system being acted upon by Coulomb damping is nonlinear because the frictional force always opposes the direction of motion of the system as stated earlier ...
Soundproof - Damping
... Damping means to reduce resonance in the room, by absorption or redirection (reflection or diffusion) ... Damping can reduce the acoustic resonance in the air, or mechanical resonance in the structure of the room itself or things in the room ...