Extract mass per body through scripting

Pernelle Marone-Hitz

How can I extract mass of each body and each point mass in the model through Mechanical scripting?

Pernelle Marone-Hitz

The following function can be used:

def ExtractMassInfo():
    '''
    Extract masses for all bodies and point masses
    '''
    listExportMasses = []
    # looping through geometry to extract name and mass of unssuppressed bodies
    for part in ExtAPI.DataModel.Project.Model.Geometry.Children: 
        if part.Suppressed is False: 
            partType = part.GetType() 
            if partType == Ansys.ACT.Automation.Mechanical.Part: 
                for body in part.Children: 
                    if body.Suppressed is False: 
                        bodyName = body.Name 
                        bodyMass = body.Mass 
                        bodyMassValue = round(bodyMass.Value, 5) 
                        bodyMassUnit = bodyMass.Unit
                        bodyCentroidX = body.CentroidX
                        bodyCentroidXValue = round(bodyCentroidX.Value, 5)
                        bodyCentroidXUnit = bodyCentroidX.Unit
                        bodyCentroidY = body.CentroidY
                        bodyCentroidYValue = round(bodyCentroidY.Value, 5)
                        bodyCentroidYUnit = bodyCentroidY.Unit
                        bodyCentroidZ = body.CentroidZ
                        bodyCentroidZValue = round(bodyCentroidZ.Value, 5)
                        bodyCentroidZUnit = bodyCentroidZ.Unit
                        listExportMasses.append([
                            str(bodyName),
                            str(bodyMassValue),
                            str(bodyMassUnit),
                            str(bodyCentroidXValue),
                            str(bodyCentroidXUnit),
                            str(bodyCentroidYValue),
                            str(bodyCentroidYUnit),
                            str(bodyCentroidZValue),
                            str(bodyCentroidZUnit)
                        ])
            elif partType == Ansys.ACT.Automation.Mechanical.PointMass:
                massName = part.Name
                massMass = part.Mass
                massMassValue = round(massMass.Value, 5)
                massMassUnit = massMass.Unit
                massCentroidX = part.XCoordinate
                massCentroidXValue = round(massCentroidX.Value, 5)
                massCentroidXUnit = massCentroidX.Unit
                massCentroidY = part.YCoordinate
                massCentroidYValue = round(massCentroidY.Value, 5)
                massCentroidYUnit = massCentroidY.Unit
                massCentroidZ = part.ZCoordinate
                massCentroidZValue = round(massCentroidZ.Value, 5)
                massCentroidZUnit = massCentroidZ.Unit
                listExportMasses.append([
                    str(massName),
                    str(massMassValue),
                    str(massMassUnit),
                    str(massCentroidXValue),
                    str(massCentroidXUnit),
                    str(massCentroidYValue),
                    str(massCentroidYUnit),
                    str(massCentroidZValue),
                    str(massCentroidZUnit)
                ])
            else:
                pass
    return listExportMasses

Huy.Truong

Hi Pernelle,
I add this python code to Properties Provider. I set up the Target Callback as Get Post Commands. However, I can not get the mass

Could you show me how to run the code? or Do I need to modify the Target Callback?

Pernelle Marone-Hitz

Hi @Huy.Truong , the property provider tab is to modify the details view of the Python Code object (ie add inputs and/or outputs parameters). It doesn't get executed when the Python Code object is triggered. Code for the Python Code object should be entered in the "Script" tab. Please note that the function I provided above is to be executed from the console. Also, "Get Post Command" callback is used to send MAPDL code for postprocessing so it is not suited in your case. I'd recommend having a look at this section of the help, it would help you.