Using ACT, how can I create a result for each time step and export result to a text file?

Pernelle Marone-Hitz
Pernelle Marone-Hitz Member, Moderator, Employee Posts: 871
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edited June 2023 in Structures

Using ACT, how can I create a result for each time step and export result to a text file?

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  • Pernelle Marone-Hitz
    Pernelle Marone-Hitz Member, Moderator, Employee Posts: 871
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    Answer ✓

    One can adapt the following code:

    • Store link to solution

        solu=ExtAPI.DataModel.Project.Model.Analyses[0].Solution

    • Obtain list of time sets

       ResData=ExtAPI.DataModel.Project.Model.Analyses[0].GetResultsData()
 DataSets=ResData.ListTimeFreq

    • Loop through data sets

       for DataSet in range(len(DataSets)):

    • Define display time

            DisplayTime=DataSets[DataSet]
      UnitTime='[sec]'

    • Insert result and evaluate

            result=solu.AddMaximumPrincipalStress()
      result.DisplayTime=Quantity(str(DisplayTime) + UnitTime)
      solu.EvaluateAllResults()

    • Export result to text file

           FilePath=r"D:\Test\Export"
     FileExtension=r".txt"   
     result.ExportToTextFile(True,FilePath+str(DisplayTime)+FileExtension)

Answers

  • Niklas_01
    Niklas_01 Member Posts: 2
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    Hello Pernelle,
    thank you for that very useful code. I use it in Mechanical to get the Equivalent Stress results for each time step. But as I have 30 substeps the solution tree is getting quite crowded. Hence my question: is it possible to write the results only into text files without displaying them in Mechanical as Solutions?

  • Pernelle Marone-Hitz
    Pernelle Marone-Hitz Member, Moderator, Employee Posts: 871
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    Hi @Niklas_01, there are a couple of options here:

    • Insert only result in the Mechanical tree and change its display time and export for all time steps. This will however take much longer to execute than the above method.
    • Keep the above method and delete all the result objects after you have exported all the info.
    • Directly read the result file through GetResultsData
    • Use DPF to do the postprocessing.

    An example of methods #2 and #3 is given here: https://discuss.ansys.com/discussion/660/how-to-iterate-through-load-steps-for-result-objects
    For method #4, see this post on how to get started: https://discuss.ansys.com/discussion/3074/getting-started-with-dpf-in-mechanical

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