Damping

Graph of a damped vibratory deflection y.
Damped spring.

In physics, damping is any effect that tends to reduce the amplitude of vibrations.[1]

In mechanics, the internal friction may be one of the causes of such damping effect. For many purposes the damping force Ff can be modeled as being proportional to the velocity v of the object:

${\displaystyle F_{\mathrm {f} }=-cv\,,}$

where c is the damping coefficient, given in units of Newton-seconds per meter.

References

1. Tongue, Benson, Principles of Vibration, Oxford University Pres, 2001, ISBN 0-195-142462