How to generate a neat input file from CAE?
How to generate a neat input file from CAE?
(OP)
Dear everyone,
I am wondering how to generate an input file from CAE without part/instance/assembly, just like the example input file provided by AQAQUS help?
Are there more example input files avaiable on how to define fluid-filled cavity?
Thanks in adavnce
I am wondering how to generate an input file from CAE without part/instance/assembly, just like the example input file provided by AQAQUS help?
Are there more example input files avaiable on how to define fluid-filled cavity?
Thanks in adavnce





RE: How to generate a neat input file from CAE?
Martin
RE: How to generate a neat input file from CAE?
How about modeling fluid-filled cavity? Any suggestion?
I just got ABAQUS V6.5 a few week ago. So more examples on the modelling of fluid-filled cavity would be very useful for me.
Best,
Yiling
RE: How to generate a neat input file from CAE?
Not done much fluid cavity modelling meself, so I don't have a lot to contribute
The manuals and the HTML docs are pretty good for most things. I seem to remember that the air-spring example is a good one for a fluid cavity inside a deformable object.
Does CAE support fluid cavity elements yet? I fear not judging by your initial request....
Martin
RE: How to generate a neat input file from CAE?
You are right. CAE doesn't supply the definition of fluid cavity. Following your suggestion, add
print_flattened_file=ON
def onJobCompletion():
import os,osutils
if os.path.exists('%s_f.inp' % id):
src='%s_f.inp'%(id)
dest=savedir
osutils.copy(src,dest)
into the environmental file (ABAQUS-v6.env), I got the succinct (or flattened) input file.
Based on this input file, I add the definition of fluid cavities:
*physical constants, absolute zero=-273.16, universal gas constant = 8.314
*fluid cavity, name=fcavity, behavior=gas, ref node=1000,surface=ASSEMBLY_SURF, ambient=1.0136e+5
*fluid behavior, name=gas
*molecular weight
0.044
*capacity, type=tabular
30
But this doesn't work in ABAQUS, the dat file generated by ABAQUS suggests:
*fluid cavity, name=fcavity, behavior=gas, ref node=1000,surface=ASSEMBLY_SURF, ambient=1.0136e+5
***ERROR: NO DATA CARDS PROVIDED FOR *FLUID CAVITY
THE PROGRAM HAS DISCOVERED 1 FATAL ERRORS
** EXECUTION IS TERMINATED **
Any comments will be appreciated.
Yiling
END OF USER INPUT PROCESSING
RE: How to generate a neat input file from CAE?
Just a thought, but should the line;
*fluid cavity, name=fcavity, behavior=gas, ref node=1000,surface=ASSEMBLY_SURF, ambient=1.0136e+5
actually read;
*fluid cavity, name=fcavity, behavior=gas, ref node=1000,surface=ASSEMBLY_SURF, ambient pressure=1.0136e+5
Martin
RE: How to generate a neat input file from CAE?
>>> m = mdb.models['Model-1'].setValues(noPartsInputFile=ON)
(assuming 'Model-1' is your model name)
harry