damping_from_log_decrement Function

public pure elemental function damping_from_log_decrement(delta) result(rst)

Computes the damping ratio from the logarithmic decrement $\delta$. The damping ratio is related to the logarithmic decrement by the following relationship.

$$\zeta = \frac{\delta}{\sqrt{4 \pi^2 + \delta^2}}$$

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=real64),	intent(in)			::	delta	The logarithmic decrement.

Return Value real(kind=real64)

The damping ratio.

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