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Remote masses not effecting mass participation

Question asked by Tim Bevins on Nov 29, 2016
Latest reply on Nov 30, 2016 by Jim Riddell

I am trying to perform a frequency analysis on a small transmitter chassis but I'm having some trouble. I've suppressed parts that I don't care about mechanically, but need their masses, so I've found their CG in relation to the center point of the assembly and added them in as Remote Mass (Direct Transfer)'s and applied them to the respect surfaces. Gravity is on, however when I run the frequency analysis, my mass participation is the same with and without the remote masses activated. In order for remote masses to work, do you need to treat solid bodies are remote masses and then apply to the applicable surfaces? Or will an external load remote mass work??