Erik Kostson
Ansys Employee

 

 

Hi
 
THe values of the amplitudes are just scaled eigenvectors in modal acoustics so they do not mean anything (the actual value). Only the overall mode shape means something, so the eigenvector.

They (values) might have some meaning when you do a harmonic excitation (say base excitation of a fluid filled tank), unfortunately this is not supported in WB mechanical. 
All the best
Erik