DAMPINGRATIO

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 and released, bounce up and down. On each bounce, the system is "trying" to return to its equilibrium position, but overshoots it. Sometimes losses damp the system and can cause the oscillations to gradually decay in amplitude towards zero. The damping ratio is a measure of describing how rapidly the oscillations decay from one bounce to the next.

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damping ratio

Noun

  1. A dimensionless measure of the damping in second-order linear dynamic system, appearing as the term <math>\zeta</math> in the generalised equation of motion for such a system, <math> \ddot{q} + 2\zeta\omega_n\dot{q} + \omega_n^2 q = F. </math>


The above text is a snippet from Wiktionary: damping ratio
and as such is available under the Creative Commons Attribution/Share-Alike License.

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