GUI: Main Menu> Solution> Solve> Current LS
3.4.5.1. Output.
The output from the solution consists mainly of the natural frequencies, which are printed as part of
the printed output (Jobname.OUT) and also written to the mode shape file (Jobname.MODE). The
printed output may include mode shapes and the participation factor table, depending on your analysis
options and output controls. Element results are written to the results file (Jobname.RST) using the
MXPAND command. If the MXPAND command is not issued, the element results are not written by
default and they cannot be post-processed.
3.4.6. Participation Factor Table Output.
The participation factor table lists participation factors, mode coefficients, and mass distribution percent-
ages for each mode extracted. The participation factors and mode coefficients are calculated based on
an assumed unit displacement spectrum in each of the global Cartesian directions and rotation about
each of these axes. The mass distribution is also listed. Rotational participation factors will be calculated
when a real eigensolver mode-extraction method (such as Block Lanczos, PCG Lanczos, Supernode, or
Subspace) is used. This table is not output when the modal analysis is for a downstream mode-super-
position cyclic harmonic analysis (CYCOPT,MSUP,1).
Retrieving a participation factor or mode coefficient You can retrieve a participation factor or
mode coefficient by issuing a *GET command (Entity=MODE).
3.4.7. Exit the Solution Processor
You must now exit the solution processor.
Command(s):FINISH
GUI: Main Menu> Finish
3.5. Reviewing the Results
Results from a modal analysis (that is, the modal expansion pass) are written to the structural results
file,Jobname.RST. Results consist of:
- Natural frequencies
- Expanded mode shapes
- Relative stress and force distributions (if requested).
You can review these results in POST1 (/POST1), the general postprocessor. Some typical postprocessing
operations for a modal analysis are described below. For a complete description of all postprocessing
functions, see An Overview of Postprocessing in the Basic Analysis Guide.
3.5.1. Points to Remember
- If you want to review results in POST1, the database must contain the same model for which the solution
was calculated. - The results file (Jobname.RST) must be available.
Release 15.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationReviewing the Results