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  1. BTFEA

    da

    I am working on the frequency response analysis using Sol 111 for a large structure. For this analysis I am defining a damping value as 5% in TABDMP1 card. But from the .f06 file I see that Nastran reads this as 10% damping using the relation G=2*modal damping (zeta). I want to know if this is...

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