Modal Analysis Postprocessing

Overview

Modes Postprocessing provides a range of options for postprocessing the output from Modal Analysis. When a Modes analysis is successfully completed, details of the solution are contained in the program output file, which has the file extension out. In this file you can find a full data echo, and (optionally) a listing of some or all of the calculated natural frequencies and mode shapes. There is extensive control over the contents of this file, so the output can be as comprehensive as you want it to be. However it is not always easy to visualise the predicted mode shapes when they appear simply as tables of data values. For this reason Modes also supports graphical viewing of modal analysis results, via an on-screen 3D display of Mode Shapes. The postprocessing module can also produce plots of Modal Displacement and Curvature.

Relevant Keywords

•*PLOT is used to specify selected modes for plotting, and the type of plot required.