Hide Table of Contents

Add Centrifugal Load Example (VB.NET)

This example shows how to add a centrifugal force load to a static study.

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, click Add Reference, click the Browse tab,
'     navigate to install_dir\api\redist\CLR2
'     click SolidWorks.Interop.cosworks.dll, and click OK).
'  3. Ensure that the specified model document exists.
'  4. Ensure that the specified materials library exists.
'  5. Open an Immediate window.
' Postconditions:
'  1. Opens the specified model document.
'  2. Creates new study, Static1.
'  3. Prints the study options of Static1 to the Immediate window.
'  4. Adds AISI 1020 steel to the solid bodies in the model.
'  5. Adds Fixed-1 restraint to Static1.
'  6. Adds Centrifugal-1 load to Static1.
'  7. Sets the properties of Centrifugal-1.
'  8. Prints the properties of Centrifugal-1 to the Immediate window.
'  9. Meshes the model.
' 10. Analyzes Static1.
' 11. Creates and activates a von Mises stress plot of the results.
' 12. 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 CWAddinCallBack As CwAddincallback
    Dim ActDoc As CWModelDoc
    Dim StudyMngr As CWStudyManager
    Dim Study As CWStudy
    Dim SolidMgr As CWSolidManager
    Dim SolidComp As CWSolidComponent
    Dim SolidBody As CWSolidBody
    Dim LBCMgr As CWLoadsAndRestraintsManager
    Dim CWCentrifugalLoad As CWCentriFugalForce
    Dim errCode As Integer
    Dim boolstatus As Boolean
    Dim longstatus As Integer, longwarnings As Integer
    Dim DispArray2 As Object
    Dim DispArray3(0) As Object
    Const MeshEleSize As Double = 4.48279654351123
    Const MeshTol As Double = 0.224139827175561
    Const Tol1 As Double = 0.05
    Sub main()
        Part = swApp.OpenDoc6("C:\Program Files\SOLIDWORKS Corp\SOLIDWORKS\Simulation\Examples\Educational Examples\spider.sldasm", 2, 0, "", longstatus, longwarnings)
        Part = swApp.ActiveDoc
        Dim PIDCollection As New Collection
        PIDCollection = PIDInitializer()
        Dim strMaterialLib As String
        strMaterialLib = swApp.GetExecutablePath & "\lang\english\sldmaterials\solidworks materials.sldmat"
        DispArray2 = SelectByPID(Part, "selection2", PIDCollection) ' shaft
        DispArray3(0) = New DispatchWrapper(SelectByPID(Part, "selection3", PIDCollection)) ' arm
        CWAddinCallBack = swApp.GetAddInObject("SldWorks.Simulation")
        If CWAddinCallBack Is Nothing Then ErrorMsg(swApp, "Failed to get Simulation add-in")
        If COSMOSWORKS Is Nothing Then ErrorMsg(swApp, "Failed to get COSMOSWORKS")
        ActDoc = COSMOSWORKS.ActiveDoc()
        If ActDoc Is Nothing Then ErrorMsg(swApp, "Failed to get active document")
        'Create new static study
        StudyMngr = ActDoc.StudyManager()
        If StudyMngr Is Nothing Then ErrorMsg(swApp, "Failed to get the study manager")
        Study = StudyMngr.CreateNewStudy3("Static1", swsAnalysisStudyType_e.swsAnalysisStudyTypeStatic, 0, errCode)
        If Study Is Nothing Then ErrorMsg(swApp, "Failed to create new study")
        'Static study options
        Dim bsOptions As CWStaticStudyOptions
        bsOptions = Study.StaticStudyOptions
        Debug.Print("Static study options")
        Dim zeroStrainTemp As Double
        Dim tempUnit As Integer
        bsOptions.GetZeroStrainTemperature(zeroStrainTemp, tempUnit)
        Debug.Print("  Zero strain temperature: " & zeroStrainTemp)
        Debug.Print("  Result folder: " & bsOptions.ResultFolder)
        Debug.Print("  Solver type as defined in swsSolverType_e: " & bsOptions.SolverType)
        Debug.Print("  Use soft spring to stabilize the model? (1 = yes, 0 = no): " & bsOptions.UseSoftSpring)
        'Add materials
        SolidMgr = Study.SolidManager
        If SolidMgr Is Nothing Then ErrorMsg(swApp, "Failed to get solid manager")
        SolidComp = SolidMgr.GetComponentAt(0, errCode)
        If errCode <> 0 Then ErrorMsg(swApp, "Failed to get component")
        SolidBody = SolidComp.GetSolidBodyAt(0, errCode)
        If errCode <> 0 Then ErrorMsg(swApp, "Failed to get solid body")
        boolstatus = SolidBody.SetLibraryMaterial(strMaterialLib, "AISI 1020")
        If boolstatus = False Then ErrorMsg(swApp, "Failed to apply material")
        SolidComp = SolidMgr.GetComponentAt(1, errCode)
        If errCode <> 0 Then ErrorMsg(swApp, "Failed to get component")
        SolidBody = SolidComp.GetSolidBodyAt(0, errCode)
        If errCode <> 0 Then ErrorMsg(swApp, "Failed to get solid body")
        boolstatus = SolidBody.SetLibraryMaterial(strMaterialLib, "AISI 1020")
        If boolstatus = False Then ErrorMsg(swApp, "Failed to apply material")
        SolidComp = SolidMgr.GetComponentAt(2, errCode)
        If errCode <> 0 Then ErrorMsg(swApp, "Failed to get component")
        SolidBody = SolidComp.GetSolidBodyAt(0, errCode)
        If errCode <> 0 Then ErrorMsg(swApp, "Failed to get solid body")
        boolstatus = SolidBody.SetLibraryMaterial(strMaterialLib, "AISI 1020")
        If boolstatus = False Then ErrorMsg(swApp, "Failed to apply material")
        LBCMgr = Study.LoadsAndRestraintsManager
        If LBCMgr Is Nothing Then ErrorMsg(swApp, "Failed to get the loads and restraints manager")
        'Add a restraint
        Dim restraint As CWRestraint
        restraint = LBCMgr.AddRestraint(swsRestraintType_e.swsRestraintTypeFixed, (DispArray3), Nothing, errCode)
        If errCode <> 0 Then ErrorMsg(swApp, "Failed to add a restraint")
        'Add a centrifugal force to the shaft
        CWCentrifugalLoad = LBCMgr.AddCentrifugalForce(DispArray2, errCode)
        If errCode <> 0 Then ErrorMsg(swApp, "Failed to create a centrifugal force load")
        CWCentrifugalLoad.AngularAcceleration = 5
        CWCentrifugalLoad.AngularVelocity = 5
        CWCentrifugalLoad.Unit = swsUnitSystem_e.swsUnitSystemSI
        Debug.Print("Centrifugal force:")
        Debug.Print("  Angular acceleration: " & CWCentrifugalLoad.AngularAcceleration)
        Debug.Print("  Angular velocity: " & CWCentrifugalLoad.AngularVelocity)
        Debug.Print("  Units as defined in swsUnitSystem_e: " & CWCentrifugalLoad.Unit)
        'Create mesh
        Dim CWMeshObj As CWMesh
        CWMeshObj = Study.Mesh
        If CWMeshObj Is Nothing Then ErrorMsg(swApp, "Failed to get the mesh object")
        CWMeshObj.MesherType = 0
        CWMeshObj.Quality = 0
        errCode = Study.CreateMesh(0, MeshEleSize, MeshTol)
        If errCode <> 0 Then ErrorMsg(swApp, "Failed to create the mesh")
        CWMeshObj = Nothing
        'Run analysis
        errCode = Study.RunAnalysis
        If errCode <> 0 Then ErrorMsg(swApp, "Analysis failed with error as defined in swsRunAnalysisError_e: " & errCode)
        Dim CWResult As CWResults
        CWResult = Study.Results
        'Plot von Mises stresses
        Dim CWPlot As CWPlot
        CWPlot = CWResult.CreatePlot(swsPlotResultTypes_e.swsResultStress, swsStaticResultNodalStressComponentTypes_e.swsStaticNodalStress_VON, swsUnit_e.swsUnitSI, False, errCode)
        If errCode <> 0 Then ErrorMsg(swApp, "Failed to create plot")
    End Sub
    Sub ErrorMsg(ByVal SwApp As SldWorks, ByVal Message As String)
        SwApp.SendMsgToUser2(Message, 0, 0)
        SwApp.RecordLine("'*** WARNING - General")
        SwApp.RecordLine("'*** " & Message)
    End Sub
    Function SelectByPID(ByVal Part As ModelDoc2, ByVal PIDName As StringByVal PIDCollection As Collection) As Object
        Dim PID() As Byte
        Dim PIDVariant As Object
        Dim PIDString As String
        Dim i As Integer
        Dim SelObj As Object
        'Get the string from the collection
        PIDString = ""
        PIDString = PIDCollection.Item(PIDName)
        'Parse the string into an array
        PIDVariant = Split(PIDString, ",")
        ReDim PID(UBound(PIDVariant))
        'Change to a byte array
        For i = 0 To (UBound(PIDVariant) - 1)
            PID(i) = PIDVariant(i)
        Next i
        'Select the entity
        SelObj = Part.Extension.GetObjectByPersistReference3((PID), errCode)
        SelectByPID = SelObj
        SelObj = Nothing
    End Function
    Function PIDInitializer() As Collection
        Dim PIDCollection As New Collection
        Dim selection2 As String
        Dim selection3 As String
        'Shaft face
        selection2 = "64,31,0,0,3,0,0,0,255,254,255,14,115,0,104,0,97,0,102,0,116,0,45,0,49,0,64,0,115,0,112,0,105,0,100,0,101,0,114,0,4,0,0,0,16,0,0,0,1,0,0,0,1,0,0,0,10,0,0,0,255,255,1,0,11,0,109,111,70,97,99,101,82,101,102,95,99,1,0,0,0,0,0,0,0,5,0,0,0,0,3,0,0,0,0,0,0,125,195,148,37,173,73,178,84,125,195,148,37,173,73,178,84,0,0,255,255,1,0,23,0,109,111,70,114,111,109,83,107,116,69,110,116,83,117,114,102,73,100,82,101,112,95,99,0,0,255,255,1,0,6,0,109,111,70,82,95,99,255,255,1,0,13,0,109,111,69,120,116,79,98,106,101,99,116,95,99,255,255,1,0,17,0,109,111,67,83,116,114,105,110,103,72,97,110,100,108,101,95,99,255,254,255,97,67,0,58,0,92,0,80,0,114,0,111,0,103,0,114,0,97,0,109,0,32,0,70,0,105,0,108,0,101,0,115,0,92,0,83,0,79,0,76,0,73,0,68,0,87,0,79,0,82,0,75,0,83,0,32,0,67,0,111,0,114,0,112,0,92,0,83,0,79,0,76,0,73,0,68,0,87,0,79,0,82,0,75,0,83,0,92,0,83,0,105,0,109,0,117,0,108,0,97,0,116,0,105,0,111,0,110,0,92,0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,115,0,92,0,69,0,100,0,117,0,99,0,97,0,11"
        selection2 = selection2 & "6,0,105,0,111,0,110,0,97,0,108,0,32,0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,115,0,92,0,115,0,104,0,97,0,102,0,116,0,46,0,115,0,108,0,100,0,112,0,114,0,116,0,9,128,255,254,255,5,115,0,104,0,97,0,102,0,116,0,2,0,0,155,126,163,53,0,165,25,208,59,1,0,0,0,0,0,0,0,5,0,0,0,255,254,255,7,68,0,101,0,102,0,97,0,117,0,108,0,116,0,63,0,0,0,0,0,0,0,7,50,149,70,12,0,0,0,171,126,163,53,1,0,0,0,255,255,1,0,20,0,109,111,69,110,100,70,97,99,101,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,12,0,0,0,171,126,163,53,1,0,0,0,255,255,255,255,0,0,12,128,0,0,5,128,8,0,12,0,0,0,171,126,163,53,0,0,0,0,255,255,255,255,0,0,0,0,0,0,0,0,0,0"
        selection2 = selection2 & ",Type=1"
        selection3 = "64,31,0,0,3,0,0,0,255,254,255,15,115,0,112,0,105,0,100,0,101,0,114,0,45,0,49,0,64,0,115,0,112,0,105,0,100,0,101,0,114,0,4,0,0,0,16,0,0,0,1,0,0,0,1,0,0,0,9,0,0,0,255,255,1,0,11,0,109,111,70,97,99,101,82,101,102,95,99,1,0,0,0,0,0,0,0,8,0,0,0,0,3,0,0,0,0,0,0,125,195,148,37,173,73,178,84,125,195,148,37,173,73,178,84,0,0,255,255,1,0,23,0,109,111,70,114,111,109,83,107,116,69,110,116,83,117,114,102,73,100,82,101,112,95,99,0,0,255,255,1,0,6,0,109,111,70,82,95,99,255,255,1,0,13,0,109,111,69,120,116,79,98,106,101,99,116,95,99,255,255,1,0,17,0,109,111,67,83,116,114,105,110,103,72,97,110,100,108,101,95,99,255,254,255,98,67,0,58,0,92,0,80,0,114,0,111,0,103,0,114,0,97,0,109,0,32,0,70,0,105,0,108,0,101,0,115,0,92,0,83,0,79,0,76,0,73,0,68,0,87,0,79,0,82,0,75,0,83,0,32,0,67,0,111,0,114,0,112,0,92,0,83,0,79,0,76,0,73,0,68,0,87,0,79,0,82,0,75,0,83,0,92,0,83,0,105,0,109,0,117,0,108,0,97,0,116,0,105,0,111,0,110,0,92,0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,115,0,92,0,69,0,100,0,117,0,99,0,9"
        selection3 = selection3 & "7,0,116,0,105,0,111,0,110,0,97,0,108,0,32,0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,115,0,92,0,115,0,112,0,105,0,100,0,101,0,114,0,46,0,115,0,108,0,100,0,112,0,114,0,116,0,9,128,255,254,255,6,115,0,112,0,105,0,100,0,101,0,114,0,2,0,0,149,119,163,53,0,73,0,71,0,1,0,0,0,0,0,0,0,3,0,0,0,255,254,255,7,68,0,101,0,102,0,97,0,117,0,108,0,116,0,142,0,0,0,0,0,0,0,13,50,149,70,28,0,0,0,119,124,163,53,10,0,0,0,255,255,1,0,20,0,109,111,69,110,100,70,97,99,101,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,107,0,0,0,227,104,166,53,1,0,0,0,255,255,255,255,255,255,1,0,19,0,109,111,70,105,108,108,101,116,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,139,0,0,0,68,107,166,53,4,0,0,0,15,128,0,0,5,128,8,0,141,0,0,0,83,107,166,53,4,0,0,0,15,128,0,0,5,128,8,0,139,0,0,0,68,107,166,53,3,0,0,0,0,0,12,128,0,0,5,128,8,0,48,0,0,0,82,125,163,53,1,0,0,0,255,255,255,255,0,0,0,0,0,0,0,0,0,0"
        selection3 = selection3 & ",Type=1"
        'Store constants in a collection
        PIDCollection.Add(selection2, "selection2")
        PIDCollection.Add(selection3, "selection3")
        PIDInitializer = PIDCollection
    End Function
    ''' <summary>
    ''' The SldWorks swApp variable is pre-assigned for you.
    ''' </summary>
    Public swApp As SldWorks
End Class



Provide feedback on this topic

SOLIDWORKS welcomes your feedback concerning the presentation, accuracy, and thoroughness of the documentation. Use the form below to send your comments and suggestions about this topic directly to our documentation team. The documentation team cannot answer technical support questions. Click here for information about technical support.

* Required

Subject:   Feedback on Help Topics
Page:   Add Centrifugal Load Example (VB.NET)
*   I acknowledge I have read and I hereby accept the privacy policy under which my Personal Data will be used by Dassault Systèmes

Print Topic

Select the scope of content to print:


We have detected you are using a browser version older than Internet Explorer 7. For optimized display, we suggest upgrading your browser to Internet Explorer 7 or newer.

 Never show this message again

Web Help Content Version: API Help (English only) 2015 SP05

To disable Web help from within SOLIDWORKS and use local help instead, click Help > Use SOLIDWORKS Web Help.

To report problems encountered with the Web help interface and search, contact your local support representative. To provide feedback on individual help topics, use the “Feedback on this topic” link on the individual topic page.