compute_modal_damping Function

public pure elemental function compute_modal_damping(lambda, alpha, beta) result(rst)

Computes the modal damping factors $\zeta_i$ given the proportional damping terms $\alpha$ and $\beta$ where $\alpha + \beta \omega_{i}^2 = 2 \zeta_{i} \omega_{i}$, $\lambda_{i} = \omega_{i}^2$, and $\lambda_i$ is the $i^{th}$ eigenvalue of the system.

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=real64),	intent(in)			::	lambda	The square of the modal frequency - the eigen value.
real(kind=real64),	intent(in)			::	alpha	The mass damping factor, $\alpha$.
real(kind=real64),	intent(in)			::	beta	The stiffness damping factor, $\beta$.

Return Value real(kind=real64)

The modal damping parameter.

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