# damping ratio

## English

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A number of second-order linear dynamic systems. ${\displaystyle \zeta }$ represents the damping ratio.

### Noun

damping ratio (plural damping ratios)

1. () A dimensionless measure of the damping in second-order linear dynamic system, appearing as the term ${\displaystyle \zeta }$ in the generalised equation of motion for such a system, ${\displaystyle {\ddot {q}}+2\zeta \omega _{n}{\dot {q}}+\omega _{n}^{2}q=F.}$