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Add Elastic Support Fixture Example (VB.NET)

This example shows how to add an elastic support fixture to a frequency study.

'----------------------------------------------------------------------------
' Preconditions:
' 1. Add the SOLIDWORKS Simulation as an add-in (in SOLIDWORKS, click 
'    Tools > Add-ins > SOLIDWORKS Simulation > OK).

' 2. Add the SOLIDWORKS Simulation primary interop assembly as a reference
'    (in the IDE, click Project > Add Reference > .NET > 
'    SolidWorks.Interop.cosworks > OK).

' 3. Ensure that the specified model document exists.
' 4. Open an Immediate window.
'
' Postconditions:
' 1. Opens the model.
' 2. Gets the Ready frequency study.
' 3. Deletes Fixture-1 from Ready.
' 4. Adds an Elastic Support-1 fixture to Ready.
' 5. Prints the properties of Elastic Support-1 to the Immediate window.
' 6. Meshes the model.
' 7. Analyzes Ready.
' 8. Prints the resonant frequency of each mode to the Immediate window.
' 9. Inspect the Immediate window, the Simulation Study tree, and the
'    graphics area.
'
' NOTE: Because the model is used elsewhere, do not save changes.
' ---------------------------------------------------------------------------
Imports SolidWorks.Interop.sldworks
Imports SolidWorks.Interop.swconst
Imports SolidWorks.Interop.cosworks
Imports System.Runtime.InteropServices
Imports System
Imports System.Diagnostics
 
Partial Class SolidWorksMacro
 
    Dim Part As ModelDoc2
    Dim COSMOSWORKS As COSMOSWORKS
    Dim COSMOSObject As CwAddincallback
    Dim ActDoc As CWModelDoc
    Dim StudyMngr As CWStudyManager
    Dim Study As CWStudy
    Dim lrMngr As CWLoadsAndRestraintsManager
    Dim lr As CWLoadsAndRestraints
    Dim elasticSupport As CWElasticConnector
    Dim CwMesh As CwMesh
    Dim CWResult As CWResults
    Dim str3 As String, str4 As String
    Dim varArray1(1) As Object, Freq As Object
    Dim pDisp3 As Object, pDisp4 As Object
    Dim var20 As Object, var21 As Object
    Dim errCode As Integer, i As Integer
    Dim el As Double, tl As Double
    Dim longstatus As Integer, longwarnings As Integer
 
 
    Sub main()
 
        Part = swApp.OpenDoc6("C:\Users\Public\Documents\SOLIDWORKS\SOLIDWORKS 2017\Simulation Examples\shaft.sldasm", swDocumentTypes_e.swDocASSEMBLY, swOpenDocOptions_e.swOpenDocOptions_Silent, "", longstatus, longwarnings)
        SwApp.ActivateDoc2("shaft"False, longstatus)
        Part = SwApp.ActiveDoc
 
        COSMOSObject = SwApp.GetAddInObject("SldWorks.Simulation")
        If COSMOSObject Is Nothing Then ErrorMsg(SwApp, "Failed to get the Simulation add-in")
 
        COSMOSWORKS = COSMOSObject.COSMOSWORKS
        If COSMOSWORKS Is Nothing Then ErrorMsg(SwApp, "Failed to get COSMOSWORKS")
 
        ActDoc = COSMOSWORKS.ActiveDoc()
        If ActDoc Is Nothing Then ErrorMsg(SwApp, "Failed to get the active document")
 
        StudyMngr = ActDoc.StudyManager()
        If StudyMngr Is Nothing Then ErrorMsg(SwApp, "Failed to get the CWStudyManager object")
 
        Study = StudyMngr.GetStudy(0)
        If Study Is Nothing Then ErrorMsg(SwApp, "Failed to get frequency study")
 
        str3 = "64,31,0,0,3,0,0,0,255,254,255,28,112,0,98,0,32,0,98,0,101,0,97,0,114,0,105,0,110,0,103,0,95,0,49,0,46,0,53,0,48,0,32,0,98,0,111,0,114,0,101,0,45,0,49,0,64,0,115,0,104,0,97,0,102,0,116,0,4,0,0,0,16,0,0,0,1,0,0,0,1,0,0,0,20,0,0,0,255,255,1,0,11,0,109,111,70,97,99,101,82,101,102,95,99,1,0,0,0,0,0,0,0,6,0,0,0,0,3,0,0,0,0,0,0,125,195,148,37,173,73,178,84,125,195,148,37,173,73,178,84,0,0,255,255,1,0,23,0,109,111,70,114,111,109,83,107,116,69,110,116,83,117,114,102,73,100,82,101,112,95,99,0,0,255,255,1,0,6,0,109,111,70,82,95,99,255,255,1,0,13,0,109,111,69,120,116,79,98,106,101,99,116,95,99,255,255,1,0,17,0,109,111,67,83,116,114,105,110,103,72,97,110,100,108,101,95,99,255,254,255,63,67,0,58,0,92,0,67,0,79,0,83,0,77,0,79,0,83,0,68,0,111,0,99,0,115,0,92,0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,115,0,95,0,102,0,111,0,114,0,67,0,117,0,115,0,116,0,111,0,109,0,101,0,114,0,115,0,92,0,112,0,98,0,32,0,98,0,101,0,97,0,114,0,105,0,110,0,103,0,95,0,49,0,46,0,53,0,48,0,32,0,98,0,111,0,114,0,"
        str3 = str3 & "101,0,46,0,83,0,76,0,68,0,80,0,82,0,84,0,9,128,255,254,255,20,112,0,98,0,32,0,98,0,101,0,97,0,114,0,105,0,110,0,103,0,95,0,49,0,46,0,53,0,48,0,32,0,98,0,111,0,114,0,101,0,2,0,0,130,66,58,52,0,144,22,28,65,1,0,0,0,0,0,0,0,34,0,0,0,255,254,255,7,68,0,101,0,102,0,97,0,117,0,108,0,116,0,52,0,0,0,0,0,0,0,144,22,28,65,8,0,0,0,157,67,58,52,1,0,0,0,255,255,1,0,20,0,109,111,69,110,100,70,97,99,101,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,8,0,0,0,157,67,58,52,0,0,0,0,255,255,255,255,3,128,0,0,5,128,8,0,8,0,0,0,157,67,58,52,8,0,0,0,12,128,0,0,5,128,8,0,8,0,0,0,157,67,58,52,1,0,0,0,255,255,255,255,3,128,0,0,5,128,8,0,8,0,0,0,157,67,58,52,2,0,0,0,0,0,0,0,0,0,0,0,0,0"
        StringtoArray(str3, var20)
        pDisp3 = Part.Extension.GetObjectByPersistReference3((var20), longstatus)
 
        str4 = "64,31,0,0,3,0,0,0,255,254,255,28,112,0,98,0,32,0,98,0,101,0,97,0,114,0,105,0,110,0,103,0,95,0,49,0,46,0,53,0,48,0,32,0,98,0,111,0,114,0,101,0,45,0,50,0,64,0,115,0,104,0,97,0,102,0,116,0,4,0,0,0,16,0,0,0,1,0,0,0,1,0,0,0,21,0,0,0,255,255,1,0,11,0,109,111,70,97,99,101,82,101,102,95,99,1,0,0,0,0,0,0,0,6,0,0,0,0,3,0,0,0,0,0,0,125,195,148,37,173,73,178,84,125,195,148,37,173,73,178,84,0,0,255,255,1,0,23,0,109,111,70,114,111,109,83,107,116,69,110,116,83,117,114,102,73,100,82,101,112,95,99,0,0,255,255,1,0,6,0,109,111,70,82,95,99,255,255,1,0,13,0,109,111,69,120,116,79,98,106,101,99,116,95,99,255,255,1,0,17,0,109,111,67,83,116,114,105,110,103,72,97,110,100,108,101,95,99,255,254,255,63,67,0,58,0,92,0,67,0,79,0,83,0,77,0,79,0,83,0,68,0,111,0,99,0,115,0,92,0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,115,0,95,0,102,0,111,0,114,0,67,0,117,0,115,0,116,0,111,0,109,0,101,0,114,0,115,0,92,0,112,0,98,0,32,0,98,0,101,0,97,0,114,0,105,0,110,0,103,0,95,0,49,0,46,0,53,0,48,0,32,0,98,0,111,0,114,0,"
        str4 = str4 & "101,0,46,0,83,0,76,0,68,0,80,0,82,0,84,0,9,128,255,254,255,20,112,0,98,0,32,0,98,0,101,0,97,0,114,0,105,0,110,0,103,0,95,0,49,0,46,0,53,0,48,0,32,0,98,0,111,0,114,0,101,0,2,0,0,130,66,58,52,0,144,22,28,65,1,0,0,0,0,0,0,0,34,0,0,0,255,254,255,7,68,0,101,0,102,0,97,0,117,0,108,0,116,0,52,0,0,0,0,0,0,0,144,22,28,65,8,0,0,0,157,67,58,52,1,0,0,0,255,255,1,0,20,0,109,111,69,110,100,70,97,99,101,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,8,0,0,0,157,67,58,52,0,0,0,0,255,255,255,255,3,128,0,0,5,128,8,0,8,0,0,0,157,67,58,52,8,0,0,0,12,128,0,0,5,128,8,0,8,0,0,0,157,67,58,52,1,0,0,0,255,255,255,255,3,128,0,0,5,128,8,0,8,0,0,0,157,67,58,52,2,0,0,0,0,0,0,0,0,0,0,0,0,0"
        StringtoArray(str4, var21)
        pDisp4 = Part.Extension.GetObjectByPersistReference3((var21), longstatus)
 
        varArray1(0) = New DispatchWrapper(pDisp3)
        varArray1(1) = New DispatchWrapper(pDisp4)
 
        lrMngr = Study.LoadsAndRestraintsManager
 
        ' Delete Fixture-1
        lrMngr.DeleteLoadsAndRestraints("Fixture-1")
 
        ' Add elastic support fixture
        elasticSupport = lrMngr.AddElasticConnector((varArray1), errCode)
 
        lr = lrMngr.GetLoadsAndRestraints(0, errCode)
        Dim
 dir(2) As Object
        dir = lr.GetDirection
        Debug.Print("Fixture " & lr.Name)
        Debug.Print("  Direction: " & dir(0) & ", " & dir(1) & ", " & dir(2))
        Debug.Print("  Number of entities: " & lr.EntityCount)
        Debug.Print("  Suppression state as defined in swsSuppressionState_e: " & lr.State)
        Debug.Print("  Type of fixture as defined in swsLoadsAndRestraintsType_e: " & lr.Type)
 
        elasticSupport.ElasticConnectorBeginEdit()
 
        Debug.Print("  Stiffness")
        Debug.Print("    Normal: " & elasticSupport.NormalStiffnessValue)
        Debug.Print("    Shear: " & elasticSupport.ShearStiffnessValue)
        Debug.Print("  Units as defined in swsUnit_e: " & elasticSupport.Unit)
 
        elasticSupport.ElasticConnectorEndEdit()
 
        ' Mesh model
        CwMesh = Study.Mesh
        If CwMesh Is Nothing Then ErrorMsg(SwApp, "Failed to get the CWMesh object")
 
        CwMesh.Quality = 1
        Call CwMesh.GetDefaultElementSizeAndTolerance(swsLinearUnit_e.swsLinearUnitMillimeters, el, tl)
 
        errCode = Study.CreateMesh(swsLinearUnit_e.swsLinearUnitMillimeters, el, tl)
        If errCode <> 0 Then ErrorMsg(SwApp, "Failed to create mesh")
 
        ' Run analysis
        errCode = Study.RunAnalysis
        If errCode <> 0 Then ErrorMsg(SwApp, "Analysis failed with error code as defined in swsRunAnalysisError_e: " & errCode)
 
        ' Get resonant frequency of each mode
        CWResult = Study.Results
        If CWResult Is Nothing Then ErrorMsg(SwApp, "Failed to get the CWResults object")
 
        Freq = CWResult.GetResonantFrequencies(errCode)
        If errCode <> 0 Then ErrorMsg(SwApp, "Failed to get resonant frequencies")
 
        Debug.Print("")
        Debug.Print("Study " & Study.Name)
        Debug.Print("  Resonant frequencies (mode number, radians/second, cycles/second, period in seconds):")
        For i = 0 To UBound(Freq)
            Debug.Print("    " & Freq(i))
        Next i
 
    End Sub
 
    Sub StringtoArray(ByVal inputSTR As StringByRef 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
 
 
    Sub ErrorMsg(ByVal SwApp As SldWorks, ByVal Message As String)
 
        SwApp.SendMsgToUser2(Message, 0, 0)
        SwApp.RecordLine("'*** WARNING - General")
        SwApp.RecordLine("'*** " & Message)
        SwApp.RecordLine("")
 
 
    End Sub
 
 
    ''' <summary>
    ''' The SldWorks swApp variable is pre-assigned for you.
    ''' </summary>
    Public swApp As SldWorks
 
 
End Class
 

 

 



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