What are our options in Solidworks to account for the missing mass effect on a response spectrum analysis?
Suppose I have an assembly with only one significant vibration mode (lets assume its a 1DOF for this discussion) with a mass participation of 50% at 30Hz and one other mode at 150Hz with mass participation of the remaining 50%. However, lets assume our response spectrum analysis cutoff frequency is 33Hz as typical. I am I correct in believing common practice would be to apply an equivalent static load using the remaining 50% mass on the assembly, possibly simply by modeling a 0.5g gravity load? If we were to do this, what are our options to superimpose this load on the response spectrum results? Is that even valid?