Extracting Modal Frequencies and MAC Coefficients for Parametric Analysis

Hello, I am comparing two modal analyses using the MAC Calculator available in the NVH Toolkit. Once the "pair modes" option is activated, I would like to extract the associated frequencies and their MAC coefficients as output parameters for use in a subsequent parametric study. Is this possible?

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Erik Kostson

Perhaps this can be used first

https://discuss.ansys.com/discussion/4725/is-there-a-way-to-export-the-csv-file-from-mac-calculator-using-mechanical-scripting

and then create a parameter out of the above obtained values:

https://discuss.ansys.com/discussion/2236/how-to-make-total-mass-of-a-part-as-an-output-parameter-in-mechanical-using-python-code-object

All the best

Erik

SimonFr

@Erik Kostson said:
HI

Perhaps this can be used first

https://discuss.ansys.com/discussion/4725/is-there-a-way-to-export-the-csv-file-from-mac-calculator-using-mechanical-scripting

and then create a parameter out of the above obtained values:

https://discuss.ansys.com/discussion/2236/how-to-make-total-mass-of-a-part-as-an-output-parameter-in-mechanical-using-python-code-object

All the best

Erik

Hello Erik, thanks for sharing.
I have already completed the first step, but once I have my CSV matrix file, I’m not sure how to select the frequencies and add them as output parameters. Thanks for your help.
Simon

Erik Kostson

Hello

Glad it helped.

Once you have all of your values (say frequencies), you can use that second example (pasted again below) to make an output parameter out of them.

https://discuss.ansys.com/discussion/2236/how-to-make-total-mass-of-a-part-as-an-output-parameter-in-mechanical-using-python-code-object

All the best

Erik

SimonFr

@Erik Kostson said:
Hello

Glad it helped.

Once you have all of your values (say frequencies), you can use that second example (pasted again below) to make an output parameter out of them.

https://discuss.ansys.com/discussion/2236/how-to-make-total-mass-of-a-part-as-an-output-parameter-in-mechanical-using-python-code-object

All the best

Erik

Hello,
I tried to modify the script you provided to apply it to my case. Unfortunately, I can't set these different frequencies. Do you have any idea of the script I could fill in?
Thank you very much.