Is there a means to map the buckled mode shape from an eigenvalue buckling analysis to a shell mesh of a pipe?

This is one way of modeling a perturbation for a non linear buckling analysis.

Other softwares can take the node location of the buckled mode shape and remesh to induce a

perturbation in the column to get the bucklign started in a nonlinear analysis.

If anyone has a literature reference for another method of inducing the perturbation, say by a force.

that would be helpful as well.

Thanks,

Steve