How to get and export SPL farfield results for different design points using scripting?

Erik Kostson

Say we have some far field acoustic SPL results (e.g., far field microphones). How can we using scripting export these for every design point in an automatic way inside Workbench Mechanical?

Erik Kostson

Below is one way of doing this (using a Python Code After Post Object - exports the below marked results):

def after_post(this, solution):# Do not edit this line
    import csv
    import wbjn
    model = ExtAPI.DataModel.Project.Model
    analysis=model.Analyses[0]
    dpn=wbjn.ExecuteCommand(ExtAPI,"returnValue(a+Parameters.GetActiveDesignPoint().Name)",a="DP")
    farfieldres=ExtAPI.DataModel.GetObjectsByType(DataModelObjectCategory.AcousticFarFieldResult)
    for res in farfieldres:
        res.Activate()
        resn=res.Name
        if resn.split('c')[0]=='Far-field SPL Mi': # comment away if we need all far field results
            myx=res.XCoordinate
            myfile='D:\mysplmic'+str(myx)+str(dpn)+'.txt'
            res.ExportToTextFile(myfile)

If we want to write all data to one text file then the below is a possible workaround (use as reference and change as needed):

def after_post(this, solution):# Do not edit this line
    import csv
    import wbjn
    model = ExtAPI.DataModel.Project.Model
    analysis=model.Analyses[0]
    dpn=wbjn.ExecuteCommand(ExtAPI,"returnValue(a+Parameters.GetActiveDesignPoint().Name)",a="DP")
    farfieldres=ExtAPI.DataModel.GetObjectsByType(DataModelObjectCategory.AcousticFarFieldResult)
    i=0 # skip header
    destfile='D:\mysplmictot.txt'
    wf=open(destfile,'a') #open file in user directory change as needed
    for res in farfieldres:
        res.Activate()
        resn=res.Name
        if resn.split('c')[0]=='Far-field SPL Mi': # comment away if we need all far field results
            myx=res.XCoordinate
            myfile='D:\mysplmic'+str(myx)+str(dpn)+'.txt'
            destfile='D:\mysplmictot.txt'
            res.ExportToTextFile(myfile)
            rf= open(myfile, 'r')
            for line in rf:
                if i>0:
                    fr=line.split('\t')[0]
                    db=line.split('\t')[1]
                    wf.write(str(dpn+resn) + "," + str(fr) + ","+ str(db) + "\n")
                i=i+1
            rf.close()
            i=0
    wf.close()