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Analyze Part Example (VB.NET)

This example shows how to create a static analysis of a part.

NOTE: To get persistent reference identifiers (PIDs) for model selections, you can use pidcollector.exe or IModelDocExtension::GetPersistReference3.

'--------------------------------------------------------

' Preconditions:

' 1.  Add the SolidWorks Simulation as an add-in

'     (in SolidWorks, click Tools > Add-ins > SolidWorks Simulation).

' 2.  Add the SolidWorks Simulation primary interop assembly as

'     a reference (in the IDE's Project Explorer, right-click

'     the project name, select Add Reference, click the Browse tab,

'     navigate to the <SolidWorks_install_dir>\api\redist\CLR2 folder and

'     select SolidWorks.Interop.cosworks.dll).

' 3.  Modify the path to solidworks materials.sldmat if needed.

' 4.  Open the Immediate window.

' 5.  Run the macro.

'

' Postconditions:

' 1. Study called Static-solid is created.

' 2. Material is applied to the model.

' 3. Restraints and pressure are applied to the selected faces.

' 4. Mesh is created.

' 5. Analysis is run.

' 6. Strain and stress results are written to the Immediate window.

'

' NOTE: Because the part document is used by

' an online SolidWorks Simulation tutorial, do

' not save any changes when closing the document.

'-------------------------------------

Imports SolidWorks.Interop.sldworks

Imports SolidWorks.Interop.swconst

Imports SolidWorks.Interop.cosworks

Imports System

Imports System.Diagnostics

Imports System.Runtime.InteropServices

 

Partial Class SolidWorksMacro

 

    Public Sub main()

 

        Dim COSMOSWORKS As Object

        Dim CWObject As CwAddincallback

        Dim ActDoc As CWModelDoc

        Dim StudyMngr As CWStudyManager

        Dim Study As CWStudy

        Dim SolidMgr As CWSolidManager

        Dim SolidComponent As CWSolidComponent

        Dim SolidBody As CWSolidBody

        Dim CwMesh As CWMesh

        Dim CWResult As CWResults

        Dim stress As Object

        Dim Part As ModelDoc2

        Dim LBCMgr As CWLoadsAndRestraintsManager

        Dim CWPressure As CWPressure

        Dim CWRes1 As CWRestraint

        Dim pointer1 As Object

        Dim pointer2 As Object

        Dim pointer3 As Object

        Dim CWMat As CWMaterial

        Dim var1 As Object = Nothing

        Dim var2 As Object = Nothing

        Dim var3 As Object = Nothing

        Dim bApp As Boolean

        Dim selection1 As String

        Dim selection2 As String

        Dim selection3 As String

        Dim longstatus As Long, longwarnings As Long

        Dim errCode As Long

        Dim NSource As Long

        Dim el As Double

        Dim tl As Double

 

        ' Open SolidWorks part document

        Part = swApp.OpenDoc6("C:\Program Files\SolidWorks Corp\SolidWorks\Simulation\Examples\Tutor1.SLDPRT ", swDocumentTypes_e.swDocPART, 1, "", longstatus, longwarnings)

        If Part Is Nothing Then ErrorMsg(swApp, "Failed to open C:\Program Files\SolidWorks Corp\SolidWorks\Simulation\Examples\Tutor1.SLDPRT.", True)

 

        'Get SolidWorks Simulation object

        CWObject = swApp.GetAddInObject("SldWorks.Simulation")

        If CWObject Is Nothing Then ErrorMsg(swApp, "CWObject object not found.", True)

        COSMOSWORKS = CWObject.COSMOSWORKS

        If COSMOSWORKS Is Nothing Then ErrorMsg(swApp, "CWObject not found.", True)

 

        ' Get active document

        ActDoc = COSMOSWORKS.ActiveDoc()

        If ActDoc Is Nothing Then ErrorMsg(swApp, "No active document.", True)

 

        ' Create new static study

        StudyMngr = ActDoc.StudyManager()

        If StudyMngr Is Nothing Then ErrorMsg(swApp, "StudyMngr object not there.", True)

        Study = StudyMngr.CreateNewStudy("Static_solid", swsAnalysisStudyType_e.swsAnalysisStudyTypeStatic, swsMeshType_e.swsMeshTypeSolid, errCode)

        If Study Is Nothing Then ErrorMsg(swApp, "Study not created.", True)

 

        ' Set material from the SolidWorks material library

        SolidMgr = Study.SolidManager

        If SolidMgr Is Nothing Then ErrorMsg(swApp, "SolidMgr object not there.", True)

        SolidComponent = SolidMgr.GetComponentAt(0, errCode)

        If errCode <> 0 Then ErrorMsg(swApp, "No solid component.", True)

        SolidBody = SolidComponent.GetSolidBodyAt(0, errCode)

        If errCode <> 0 Then ErrorMsg(swApp, "No solid body.", True)

        bApp = SolidBody.SetLibraryMaterial("c:\Program Files\SolidWorks Corp\SolidWorks\lang\english\sldmaterials\solidworks materials.sldmat", "Ductile Iron (SN)")

        If bApp = False Then ErrorMsg(swApp, "No material applied.", True)

        CWMat = SolidBody.GetDefaultMaterial

        NSource = CWMat.Source

 

        ' Get the PIDs of the faces

        ' First two selections are the faces for restraints

        ' Third selection is the face where pressure is applied

        selection1 = "216,14,0,0,3,0,0,0,255,254,255,0,0,0,0,0,255,255,1,0,11,0,109,111,70,97,99,101,82,101,102,95,99,1,0,0,0,0,0,0,0,5,0,0,0,0,3,0,0,0,0,0,0,125,195,148,37,173,73,178,84,125,195,148,37,173,73,178,84,0,0,255,255,1,0,21,0,109,111,76,80,97,116,116,101,114,110,83,117,114,102,73,100,82,101,112,95,99,0,0,255,255,1,0,6,0,109,111,70,82,95,99,255,255,1,0,13,0,109,111,69,120,116,79,98,106,101,99,116,95,99,255,255,1,0,14,0,109,111,79,98,106,70,105,108,101,68,101,102,95,99,255,255,1,0,17,0,109,111,67,83,116,114,105,110,103,72,97,110,100,108,101,95,99,255,254,255,6,84,0,117,0,116,0,111,0,114,0,49,0,123,228,186,50,11,128,255,254,255,62,67,0,58,0,92,0,80,0,114,0,111,0,103,0,114,0,97,0,109,0,32,0,70,0,105,0,108,0,101,0,115,0,92,0,83,0,111,0,108,0,105,0,100,0,87,0,111,0,114,0,107,0,115,0,92,0,67,0,79,0,83,0,77,0,79,0,83,0,87,0,111,0,114,0,107,0,115,0,92,0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,115,0,92,0,84,0,117,0,116,0,111,0,114,0,49,0,46,0,83,0,76,0,68,0,80,0,82,0,84,0,97,23,28,65,0,0,0,0"

        selection1 = selection1 & ",2,0,1,0,0,0,0,0,0,0,1,0,0,0,255,254,255,7,68,0,101,0,102,0,97,0,117,0,108,0,116,0,0,0,0,0,0,0,0,0,0,0,0,0,17,0,0,0,156,231,186,50,255,255,1,0,23,0,109,111,70,114,111,109,83,107,116,69,110,116,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,14,0,0,0,88,231,186,50,3,0,0,0,1,0,0,0,0,0,0,0,255,255,1,0,20,0,109,111,69,110,100,70,97,99,101,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,6,0,0,0,211,228,186,50,1,0,0,0,255,255,255,255,0,0,17,128,0,0,5,128,8,0,6,0,0,0,211,228,186,50,0,0,0,0,255,255,255,255,0,0,0,0,0,0"

        selection1 = selection1 & ",Type=1"

        StringtoArray(selection1, var1)

        pointer1 = Part.Extension.GetObjectByPersistReference3((var1), longstatus)

 

        selection2 = "216,14,0,0,3,0,0,0,255,254,255,0,0,0,0,0,255,255,1,0,11,0,109,111,70,97,99,101,82,101,102,95,99,1,0,0,0,0,0,0,0,5,0,0,0,0,3,0,0,0,0,0,0,125,195,148,37,173,73,178,84,125,195,148,37,173,73,178,84,0,0,255,255,1,0,23,0,109,111,70,114,111,109,83,107,116,69,110,116,83,117,114,102,73,100,82,101,112,95,99,0,0,255,255,1,0,6,0,109,111,70,82,95,99,255,255,1,0,13,0,109,111,69,120,116,79,98,106,101,99,116,95,99,255,255,1,0,14,0,109,111,79,98,106,70,105,108,101,68,101,102,95,99,255,255,1,0,17,0,109,111,67,83,116,114,105,110,103,72,97,110,100,108,101,95,99,255,254,255,6,84,0,117,0,116,0,111,0,114,0,49,0,123,228,186,50,11,128,255,254,255,62,67,0,58,0,92,0,80,0,114,0,111,0,103,0,114,0,97,0,109,0,32,0,70,0,105,0,108,0,101,0,115,0,92,0,83,0,111,0,108,0,105,0,100,0,87,0,111,0,114,0,107,0,115,0,92,0,67,0,79,0,83,0,77,0,79,0,83,0,87,0,111,0,114,0,107,0,115,0,92,0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,115,0,92,0,84,0,117,0,116,0,111,0,114,0,49,0,46,0,83,0,76,0,68,0,80,0,82,0,84,0,97,23,28,"

        selection2 = selection2 & "65,0,0,0,0,2,0,1,0,0,0,0,0,0,0,1,0,0,0,255,254,255,7,68,0,101,0,102,0,97,0,117,0,108,0,116,0,0,0,0,0,0,0,0,0,0,0,0,0,14,0,0,0,88,231,186,50,3,0,0,0,255,255,1,0,20,0,109,111,69,110,100,70,97,99,101,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,6,0,0,0,211,228,186,50,1,0,0,0,255,255,255,255,0,0,14,128,0,0,5,128,8,0,6,0,0,0,211,228,186,50,0,0,0,0,255,255,255,255,0,0,0,0,0,0"

        selection2 = selection2 & ",Type=1"

        StringtoArray(selection2, var2)

        pointer2 = Part.Extension.GetObjectByPersistReference3((var2), longstatus)

        selection3 = "216,14,0,0,3,0,0,0,255,254,255,0,0,0,0,0,255,255,1,0,11,0,109,111,70,97,99,101,82,101,102,95,99,1,0,0,0,0,0,0,0,8,0,0,0,0,3,0,0,0,0,0,0,125,195,148,37,173,73,178,84,125,195,148,37,173,73,178,84,0,0,255,255,1,0,20,0,109,111,69,110,100,70,97,99,101,83,117,114,102,73,100,82,101,112,95,99,0,0,255,255,1,0,6,0,109,111,70,82,95,99,255,255,1,0,13,0,109,111,69,120,116,79,98,106,101,99,116,95,99,255,255,1,0,14,0,109,111,79,98,106,70,105,108,101,68,101,102,95,99,255,255,1,0,17,0,109,111,67,83,116,114,105,110,103,72,97,110,100,108,101,95,99,255,254,255,6,84,0,117,0,116,0,111,0,114,0,49,0,123,228,186,50,11,128,255,254,255,62,67,0,58,0,92,0,80,0,114,0,111,0,103,0,114,0,97,0,109,0,32,0,70,0,105,0,108,0,101,0,115,0,92,0,83,0,111,0,108,0,105,0,100,0,87,0,111,0,114,0,107,0,115,0,92,0,67,0,79,0,83,0,77,0,79,0,83,0,87,0,111,0,114,0,107,0,115,0,92,0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,115,0,92,0,84,0,117,0,116,0,111,0,114,0,49,0,46,0,83,0,76,0,68,0,80,0,82,0,84,0,97,23,28,65,0,0,0,0,2,0,"

        selection3 = selection3 & "1,0,0,0,0,0,0,0,1,0,0,0,255,254,255,7,68,0,101,0,102,0,97,0,117,0,108,0,116,0,0,0,0,0,0,0,0,0,0,0,0,0,11,0,0,0,51,230,186,50,1,0,0,0,255,255,255,255,255,255,1,0,23,0,109,111,70,114,111,109,83,107,116,69,110,116,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,8,0,0,0,218,229,186,50,4,0,0,0,0,0,255,255,1,0,18,0,109,111,80,76,105,110,101,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,31,0,0,0,210,195,223,50,17,128,0,0,5,128,8,0,23,0,0,0,160,192,223,50,14,128,0,0,5,128,8,0,19,0,0,0,181,233,186,50,1,0,0,0,1,0,0,0,2,0,0,0,17,128,0,0,5,128,8,0,31,0,0,0,210,195,223,50,17,128,0,0,5,128,8,0,23,0,0,0,160,192,223,50,14,128,0,0,5,128,8,0,19,0,0,0,181,233,186,50,1,0,0,0,1,0,0,0,1,0,0,0,17,128,0,0,5,128,8,0,31,0,0,0,210,195,223,50,17,128,0,0,5,128,8,0,23,0,0,0,160,192,223,50,14,128,0,0,5,128,8,0,19,0,0,0,181,233,186,50,1,0,0,0,2,0,0,0,3,0,0,0,17,128,0,0,5,128,8,0,31,0,0,0,210,195,223,50,17,128,0,0,5,128,8,0,23,0,0,0,160,192,223,50,14,"

        selection3 = selection3 & "128,0,0,5,128,8,0,19,0,0,0,181,233,186,50,1,0,0,0,2,0,0,0,4,0,0,0,0,0,0,0,0,0"

        selection3 = selection3 & ",Type=1"

        StringtoArray(selection3, var3)

        pointer3 = Part.Extension.GetObjectByPersistReference3((var3), longstatus)

 

        ' Create variant arrays

        Dim varArray1 As Object() = {pointer1, pointer2}

        Dim varArray2 As Object() = {pointer3}

 

        ' Add fixed restraint

        LBCMgr = Study.LoadsAndRestraintsManager

        If LBCMgr Is Nothing Then ErrorMsg(swApp, "No loads and restraints manager.", False)

        CWRes1 = LBCMgr.AddRestraint(0, (varArray1), Nothing, errCode)

        If errCode <> 0 Then ErrorMsg(swApp, "No fixed restraint created.", True)

 

        ' Apply pressure normal to selected face

        CWPressure = LBCMgr.AddPressure(0, (varArray2), Nothing, errCode)

        If errCode <> 0 Then ErrorMsg(swApp, "No normal pressure created.", True)

        Call CWPressure.PressureBeginEdit()

        CWPressure.Unit = 1

        CWPressure.Value = 1000

        errCode = CWPressure.PressureEndEdit

        If errCode <> 0 Then ErrorMsg(swApp, "Nonuniform pressure distribution not set.", True)

 

        ' Create mesh

        CwMesh = Study.Mesh

        If CwMesh Is Nothing Then ErrorMsg(swApp, "No mesh object.", False)

        CwMesh.Quality = 1

        Call CwMesh.GetDefaultElementSizeAndTolerance(0, el, tl)

        errCode = Study.CreateMesh(0, el, tl)

        If errCode <> 0 Then ErrorMsg(swApp, "Mesh failed.", True)

 

        'Run analysis

        errCode = Study.RunAnalysis

        If errCode <> 0 Then ErrorMsg(swApp, "Analysis failed.", True)

        CWResult = Study.Results

        If CWResult Is Nothing Then ErrorMsg(swApp, "No result object.", False)

        stress = CWResult.GetMinMaxStress(0, 0, 1, Nothing, 0, errCode)

 

        ' Get strain and stress results for

        ' first face selected for restraint

        Dim i As Integer

        Dim status As Integer

        Dim dispWrapper(0) As DispatchWrapper

        dispWrapper(0) = New DispatchWrapper(CType(pointer1, Entity))

        Dim results() As Object

        Dim resultsString As String

 

        Debug.Print("  Strain value by node:")

        results = CWResult.GetStrainForEntities2(True, CType(swsStrainComponent_e.swsStrainComponentESTRN, Integer), 1, Nothing, dispWrapper, status)

        For i = 0 To UBound(results)

            resultsString = Convert.ToString(results(i))

            Debug.Print("     " & resultsString)

        Next i

 

        Debug.Print(" ")

 

        Debug.Print("  Stress value by node:")

        results = CWResult.GetStressForEntities2(True, CType(swsStressComponent_e.swsStressComponentVON, Integer), 1, Nothing, dispWrapper, swsStrengthUnit_e.swsStrengthUnitPascal, status)

        For i = 0 To UBound(results)

            resultsString = Convert.ToString(results(i))

            Debug.Print("     " & resultsString)

        Next i

 

    End Sub

 

    Private Sub ErrorMsg(ByVal SwApp As Object, ByVal Message As String, ByVal EndTest As Boolean)

        swApp.SendMsgToUser2(Message, 0, 0)

        swApp.RecordLine("'*** WARNING - General")

        swApp.RecordLine("'*** " & Message)

        swApp.RecordLine("")

        If EndTest Then

        End If

    End Sub

 

    ' Parse string into an array

    Private Sub StringtoArray(ByVal inputSTR As String, ByRef varEntity As Object)

        Dim PID() As Byte

        Dim i As Integer

        varEntity = Split(inputSTR, ",")

        ReDim PID(UBound(varEntity))

        For i = 0 To (UBound(varEntity) - 1)

            PID(i) = varEntity(i)

        Next i

        varEntity = PID

    End Sub

 

    ''' <summary>

    ''' The SldWorks swApp variable is pre-assigned for you.

    ''' </summary>

    Public swApp As SldWorks

End Class



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