• RAM Mass Participation with Ritz Vectors

    Hello, I have been trying to use the Ritz vector solution to get 90% mass participation in my model. I have noticed something I find odd, but perhaps this there is a rational explanation for this. Running 30 eigenvalue modes the mass participation in…
  • RE: Modes

    In RAM Structural System, Ram Frame, use Loads - Load Cases - and add a Dynamic - Eigensolution load case. More here: RAM Frame - Dynamic Modal Analysis FAQ In Ram Elements it's one of the options in Process - Analyze. More here: RAM Elements Dynamic…