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CAE NX NASTRAN-103 SOLUTION: Modal mass sum and Modal mass effective fraction

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ASMB

Mechanical
Joined
May 4, 2014
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Location
GB
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?
 
Hello!,
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:

freq_postprocessing_xyplot.png


Best regards,
Blas.



~~~~~~~~~~~~~~~~~~~~~~
Blas Molero Hidalgo
Ingeniero Industrial
Director

IBERISA
48004 BILBAO (SPAIN)
WEB: Blog de FEMAP & NX Nastran:
 
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