Hey all,

I’m trying to simulate an oscillating tube. I used the cantilever_beam demo and adapted it for a tube.

When I compute the eigenvalues (frequencies) and the corresponding eigenvectors (displacements), how can I see which eigenvectors are contributing * more* to the oscillation than others and which are not?

I converted the PETSc Vectors which I got from get_eigenpair to numpy arrays. Are the displacements in these arrays saved nodewise and coordinatewise? Like are the first three lines x, y, z coordinates from the first node, then the second line x,y,z from the second node and so on? And what are the units? Are they somehow normalized?

Thanks in advance,

Veronika