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  1. BTFEA

    da

    Thanks Blas, for detailed explanation. Yes it will certainly help. Regards, Madhu
  2. BTFEA

    da

    Hello Blas, Thanks for the reply. Though it is clearly understood how to define damping in the sol 111,It still does not solve my problem please see the problem definition below. If I have to define a Modal damping of 5% in sol 111 which option is correct: 1) defining a CRITICAL damping value...
  3. 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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