Look up: damping-ratio

1. Damping ratio
   ratio of actual damping to critical damping; if the damping ratio is less than one a system is said to be underdamped and if it is greater than one a system is said to be overdamped.
   Found on http://www.empiremagnetics.com/glossary/
   
   
2. damping ratio
   for a linear time-invariant system of the second order described by the differential equation the damping ratio is the value of the factor ? NOTE 1 - ?_o is the characteristic angular frequency of the system. NOTE 2 - is the eigen angular frequency of the system.
   Found on http://www.electropedia.org/iev/iev.nsf/
   
   
3. damping ratio
   ratio of the actual damping to the critical damping
   Found on http://www.electropedia.org/iev/iev.nsf/
   
   
4. Damping ratio
   Measure for the damping of wind vanes. It represents the ratio between the consecutive damped deflection amplitudes (for example 3rd amplitu-de to 1st amplitude) in one direction.
   Found on http://www.thiesclima.com/wind_glossary_
   
   
5. Damping ratio
   In engineering, the `damping ratio` is a dimensionless measure describing how oscillations in a system decay after a disturbance. Many systems exhibit oscillatory behavior when they are disturbed from their position of static equilibrium. A mass suspended from a spring, for example, might, if pulled...
   Found on http://en.wikipedia.org/wiki/Damping_rat