I am attaching the CAE model and python script file to generate the model.
The model gets solved as per the requirement.
Now, I want to access the outputs like frequency for various modes etc. These are typically shown as legends in the graph on the right view-port. They are also accessible in a table in .dat file generated in the working directory.
Typically, for static analysis cases, I have been able to access the outputs by defining and reading, the field outputs. But this doesnt happen for the frequency case?
How can I access these results though the python API?
Thanks all, I found the answer in the documentation eventually.
Frequency is part of history output, and to get to frequency output, we need to create a history region and then use the name 'EIGFREQ' for frequency.
Code snippet below:
# Import abaqus odb work related modules
from odbAccess import *
# Read the odb file, change name and path as per your requirement
odb = openOdb(path='vibration.odb')
### This is a typical procedure to read history-outputs, as
### frequency etc. information is not available as field output
# Create a step
step1 = odb.steps['Step-1']
# Read the history region, the key for this call
# determines what you are picking as your region,
# it can be a node, an element or as in this case,
# the whole model.
region = step1.historyRegions['Assembly ASSEMBLY']
# Once the history region has been set, all the history outputs can
# be referenced using their names. EIGFREQ for frequency etc.
freqData = region.historyOutputs['EIGFREQ'].data
My github repo with code samples for static as well dynamic case.
https://github.com/chintanp/python_abaqus
Hi
Is this what you are looking for?
http://softroboticstoolkit.com/files/sorotoolkit/files/learnabaqusscriptinonehour.pdf
http://www.abaquspython.com/
https://www.youtube.com/watch?v=RmEYJzMx9Qk
https://www.researchgate.net/search.Search.html?type=question&query=python+abaqus
Sincerely
Claes
Hello,
just follow the steps
1. load the cae model in ABAQUS
2. Mesh. no need to go for refine mesh. Frequency will be same in course and fine mesh
3. Make sure that the properties like density, youngs modulus, poisson ratio are defined.
4. In step go for linear perturbation( in the window of step GENERAL will be showing by default) . In that you can select frequency option.
all the best.
let me know if any other problem encounters during this frequency analysis.
If you found this answer helps you then give voting so that other researchers encountering same problem will get answer so easily.
The only Field output you get normally for a Frequency step is U against different frequencies (which is normalised), representing only a displacement vector but cannot be considered as a real value.
You will get some history outputs by default from Frequency analysis (like EIGFREQ). But you will not get outputs like U from history output. Is this what you are looking for?
Or Do you specifically want to plot Freq(X axis) against some other value in Y axis?
Thanks all, I found the answer in the documentation eventually.
Frequency is part of history output, and to get to frequency output, we need to create a history region and then use the name 'EIGFREQ' for frequency.
Code snippet below:
# Import abaqus odb work related modules
from odbAccess import *
# Read the odb file, change name and path as per your requirement
odb = openOdb(path='vibration.odb')
### This is a typical procedure to read history-outputs, as
### frequency etc. information is not available as field output
# Create a step
step1 = odb.steps['Step-1']
# Read the history region, the key for this call
# determines what you are picking as your region,
# it can be a node, an element or as in this case,
# the whole model.
region = step1.historyRegions['Assembly ASSEMBLY']
# Once the history region has been set, all the history outputs can
# be referenced using their names. EIGFREQ for frequency etc.
freqData = region.historyOutputs['EIGFREQ'].data
My github repo with code samples for static as well dynamic case.
https://github.com/chintanp/python_abaqus
Can anyone tell me how should i defined a python script in order to analize the model in terms of the Stress analysis and Eigen Buckling (In one python script it self ). how can i assign DOF to analize both the part ( STRESS and EIGEN BUCKLING) . Help will be really appriciable . Thank you in advance
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