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[GEN/Load]A case in which both 'Time History Analysis Default Damping Ratio' and 'Group Damping Ratio' are entered

Question

When entering time history load conditions, if I enter the default damping for the entire mode and a different damping for Group damping, which value is applied as the damping?

 

Answer

If you enter a damping ratio in Group Damping, the group damping ratio is applied. (Model > Properties > Group Damping~)

Below are the Damping Methods for each method.

In the table below, the Group Damping method is applicable for the two methods, Strain Energy Proportional and Element Mass & Stiffness Proportional, which are shaded in yellow. This is not the case for other methods.

 

[Image] Damping Method                                                             [Image] Group Damping

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