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Reducing File Size (modfem)

Experimenter
Experimenter

I have a model with 3 GB size of modfem and when I tried to reduce it by deleting properties, layups which are not used in the analysis, actually it is getting slightly bigger after saving it.

 

I was wonder what's the biggest part of modfem.

So, I started to delete groups, loads, analysis sets, etc and then I ended up with 2.7GB after deleting all (including elms, nodes, materials, properties, ... I did "reBuild" and saved it). I think I deleted everything so it should be the minimal size but it still has 2.7GB.

 

What is this 2.7GB taking?

 

5 REPLIES

Re: Reducing File Size (modfem)

Solution Partner Phenom Solution Partner Phenom
Solution Partner Phenom

Hello!,

The "trick" is to use FILE > REBUILD, and next save the FEMAP model using command FILE > SAVE AS. If you delete anything of the FEMAP model but do not perform FILE > REBUILD then the size of the FEMAP model is not reduced at all.

What increases the size of the FEMAP model is basically results internalized (loaded) in FEMAP, if you are running FEMAP with NX NASTRAN bundle after performing any analysis FEMAP will load the *.op2 file and the NX NASTRAN results will be now part of the FEMAP *.modfem database.

Simply delete ALL results and perform a FILE > REBUILD and next use command FILE > SAVE AS and you will see the size of the *.modfem file will be a few MBytes only ...

Best regards,
Blas.

Blas Molero Hidalgo, Ingeniero Industrial, Director
IBERISA • 48004 BILBAO (SPAIN)
WEB: http://www.iberisa.com
Blog Femap-NX Nastran: http://iberisa.wordpress.com/

Re: Reducing File Size (modfem)

Experimenter
Experimenter

As I stated in the original post, I DID what you said (File-> Rebuild & Save as) after deleting everything including nodes, elements, properties etc... but Still shows 2.76GB.

 

Does FEMAP save any kind of history or any garbages somewhere?

Re: Reducing File Size (modfem)

Solution Partner Phenom Solution Partner Phenom
Solution Partner Phenom

Not at all, FEMAP in this sense is clear & simply, not history exist. Without the model in hand is difficult to know what problem exist. Post the output of command LIST > MODEL INFO

Best regards,
Blas.

Blas Molero Hidalgo, Ingeniero Industrial, Director
IBERISA • 48004 BILBAO (SPAIN)
WEB: http://www.iberisa.com
Blog Femap-NX Nastran: http://iberisa.wordpress.com/

Re: Reducing File Size (modfem)

Experimenter
Experimenter

Model Size 2689 MBytes
Cache Size 55866 Pages of 4 Blocks each. Max of 415704 Pages.
Memory Status Total: 65302 MBytes Available: 57486 MBytes
Last Saved by Serial Number 1140-FX-NT-1710
Min Max Number Next Active Color
Coordinate System 3 60
Point 1 24
Curve 1 120
Surface 1 60
Solid/Volume 1
Connector 1 14
Region 1 20488
Connection Property 1 110
Text 1 124
Node 1 46
Element 1 124
Material 1 55
Property 1 110
Load Set 1
Constraint Set 1
View 1 1 1 2 1
Group 1
Output Set 1
Output Format 1

Re: Reducing File Size (modfem)

Siemens Phenom Siemens Phenom
Siemens Phenom

First, this is really a Femap issue, better to post it on the Femap forum.

 

Look under Custom Tools/Model Query/Model Contents run that api and post those results.

Next,take a look at File/References and see what is listed there.

Did you have results attached or imported before you deleted all output?

Finally, you could also try exporting neutral file and see if it is also very large, if it is , then we could look at the neu file and see exactly what data is taking up the space.