You can list mass participation ratios in the global X, Y, and Z directions normalized with respect to the total mass after running a frequency study.
Mass participation ratios are important in determining the adequacy of the calculated modes to solve dynamic problems with base motion. Many codes require that at least 80% of the mass of the system participates in specified directions.
To access this PropertyManager, after you run a frequency or linear dynamic study, right-click Results folder and select List Mass Participation.
| Study name |
Displays the name of the active frequency study. |
| Mode No. |
Displays a list of mode numbers. |
| Freq (Hertz) |
Lists the resonant frequencies in Hertz. |
| X direction |
Lists the mass participation ratios in the global X direction for each mode. Variable SumX stores the sum of all mass participation ratios in the X direction.
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| Y direction |
Lists the mass participation ratios in the global Y direction for each mode. Variable SumY stores the sum of all mass participation ratios in the Y direction.
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| Z direction |
Lists the mass participation ratios in the global Z direction for each mode. Variable SumZ stores the sum of all mass participation ratios in the Z direction.
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| Save |
Saves the list as an Excel file (*.csv) or as a Plain text file (*.txt). |