CAE NX NASTRAN-103 SOLUTION: Modal mass sum and Modal mass effective fraction
CAE NX NASTRAN-103 SOLUTION: Modal mass sum and Modal mass effective fraction
(OP)
I can’t find how to check the Modal mass sum and the Modal mass effective fraction when I’m doing a 103 solution(MODAL ANALISYS), Can somebody help me?





RE: CAE NX NASTRAN-103 SOLUTION: Modal mass sum and Modal mass effective fraction
This is very easy, simply enter in the nastran case control the command:
MEFFMASS(PLOT,GRID=0,FRACSUM,SUMMARY) = YES
You will get the modal mass sum and modal mass participation factor results written in the *.F06 output file:
Best regards,
Blas.
~~~~~~~~~~~~~~~~~~~~~~
Blas Molero Hidalgo
Ingeniero Industrial
Director
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