You can display the
ViewFlex Log Files to display information about the modal analysis and the flexible- body generation steps only for Extrusion function. Using the log file, you can follow and understand each intermediate step that generates the .
MNF file and, consequently, the flexible body (mesh generation, number of nodes and elements, number of modes, orthogonalization, modal calculation, optionally modal stress/strain calculation, and so on). The log file automatically appears when something goes wrong. This normally happens, if the analysis doesn't run successfully.