Modal Participation

Modal participation represents the complex contribution of a structure or fluid mode to a response. These modes can be systems modes in a modal frequency response analysis, or component modes from CMS superelement subsystems. Modal participation can be output from a modal frequency response analysis using the PFMODE output request card.

Panel contribution represents the complex contribution of all grids on a structural panel to a response. It can be output from a modal frequency response analysis using the PFPANEL output request card.

Normal modes data can be associated to modal participation results using the Diagnostic Results option on the context sensitive menu of the response plot. Select and load a normal modes data file from the Diagnostic Results dialog and click OK once the data in the file is loaded. A dynamic context sensitive menu item Normal Mode Animation is available from the modal participation bar plot, which when selected, generates a normal modes animation plot.

Figure 1. Response plot - context sensitive menu

Figure 2. Diagnostic Results dialog

Figure 3. Normal mode animation context sensitive menu item accessed from the modal participation bar plot