How to create Function Expressions (force and torque) from a selected joint?

Gabriel Messager
Gabriel Messager Member, Employee Posts: 63
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in 3D Design

From a joint I select in the Mechanical tree, I want to create automatically 6 Function Expressions to post process joint tensor in the global coordinate system.

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  • Gabriel Messager
    Gabriel Messager Member, Employee Posts: 63
    5 Answers Second Anniversary 10 Comments 5 Likes
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    edited March 18 
    analysis = Model.Analyses[0]
joint = Tree.FirstActiveObject
group_FE = []
group_CR = []
if isinstance(joint, Ansys.ACT.Automation.Mechanical.Connections.Joint):
    for comp in ["FX","FY","FZ","TX","TY","TZ"]:
        newfunction = analysis.CreateLoadObject("FunctionExpression","ANSYSMotion")
        newfunction.Properties['Definition/FunctionExpression'].Value = comp + r'(p1,p2)'
        newfunction.Caption = joint.Name + "_" + comp
        table = newfunction.Properties.GetByName("FunctionArgument")
        for i, suffix in enumerate(["/ActionMarker", "/BaseMarker"]):
            table.AddRow()
            table.Properties.GetByName("XData").Value = "p" + str(i+1)
            table.Properties.GetByName("YData").Value = str(joint.ObjectId) + suffix
            table.SaveActiveRow()
        newfunction.NotifyChange()
        group_FE.append(newfunction)

        custom_result = analysis.CreatePostObject("CustomResult","ANSYSMotion")
        custom_result.Properties['Definition/Type/FunctionExpression'].Value = str(newfunction.ObjectId)
        custom_result.Caption = "CR_" + joint.Name + "_" + comp
        group_CR.append(custom_result)

    grouping_folder = Tree.Group(group_FE)
    grouping_folder.Name = joint.Name
    grouping_folder = Tree.Group(group_CR)
    grouping_folder.Name = "CR_" + joint.Name
else:
    print("not joint")

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