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PARAM, ALPHA1FL

PARAM, ALPHA1FL

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PARAM, ALPHA1FL

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Parameter

Values

Description

ALPHA1FL

<Real>

Default = 0.0

PARAM, ALPHA1FL is used in frequency and transient response analysis.

If PARAM, ALPHA1FL and/or PARAM, ALPHA2FL are not equal to zero, then Rayleigh damping is added to the viscous damping. ALPHA1FL is the scale factor applied to the mass matrix and ALPHA2FL to the fluid stiffness matrix as in:

[B'] = [B] + ALPHA1FL∙[M]+ ALPHA2FL∙[K]