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Apply Loads to Beams Example (VB.NET)

This example shows how to apply the total force, or load, along the length of a beam in various types of distributions.

'---------------------------------------------------------------------------
' 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 the specified part exists.

' 4. Open the Immediate window.
'
' Postconditions:
' 1. Loads are applied to the part, and their
'    distribution types are shown in the Immediate
'    window.
' 2. To verify, examine the External Loads folder
'    in Study 3 in the Simulation tree.
'
' NOTE: Because this part document is used elsewhere, do not save changes.
'----------------------------------------------------------------------------
Imports SolidWorks.Interop.sldworks
Imports SolidWorks.Interop.swconst
Imports System
Imports System.Diagnostics
Imports SolidWorks.Interop.cosworks

Partial Class SolidWorksMacro

    
Public Sub Main()

        
Dim swModel As ModelDoc2
        
Dim swModelDocExt As ModelDocExtension
        
Dim swSelMgr As SelectionMgr
        
Dim COSMOSWORKS As Object
        Dim COSMOSObject As CwAddincallback
        
Dim swsActDoc As CWModelDoc
        
Dim swsStudyMngr As CWStudyManager
        
Dim swsStudy As CWStudy
        
Dim swsLBCMgr As CWLoadsAndRestraintsManager
        
Dim swsCWForce As CWForce
        
Dim selBeam As Object
        Dim selFace As Object
        Dim data(5) As Double
        Dim rowNum As Integer
        Dim distValue(2) As Double
        Dim forceValue(2) As Double
        Dim errors As Integer
        Dim warnings As Integer
        Dim errCode As Integer
        Dim forceType As String

        Const fileName As String = "C:\Users\Public\Documents\SOLIDWORKS\SOLIDWORKS 2017\tutorial\api\Loop.sldprt"

        ' Open document
        swModel = swApp.OpenDoc6(fileName, swDocumentTypes_e.swDocPART, swOpenDocOptions_e.swOpenDocOptions_Silent, "", errors, warnings)
        swModelDocExt = swModel.Extension

        
' Get the SOLIDWORKS Simulation object
        COSMOSObject = swApp.GetAddInObject("SldWorks.Simulation")
        
If COSMOSObject Is Nothing Then ErrorMsg(swApp, "No CwAddincallback object")
        COSMOSWORKS = COSMOSObject.COSMOSWORKS
        
If COSMOSWORKS Is Nothing Then ErrorMsg(swApp, "No COSMOSWORKS object")

        
' Open and get active document
        swsActDoc = COSMOSWORKS.ActiveDoc()
        
If swsActDoc Is Nothing Then ErrorMsg(swApp, "No active document")

        
' Create new static study
        swsStudyMngr = swsActDoc.StudyManager()
        
If swsStudyMngr Is Nothing Then ErrorMsg(swApp, "No CWStudyManager object")
        swsStudy = swsStudyMngr.GetStudy(2)
        
If swsStudy Is Nothing Then ErrorMsg(swApp, "No CWStudy object")

        swsLBCMgr = swsStudy.LoadsAndRestraintsManager

        swSelMgr = swModel.SelectionManager


        
' Select the beam and the face to which apply the force
        Call swModel.Extension.SelectByID2("Structural Member1[3]", "SOLIDBODY", 0.2669983091512, -0.4441139265177, -0.05999999999995, True, 0, Nothing, 0)
        selBeam = swSelMgr.GetSelectedObject6(1, -1)

        
Call swModel.Extension.SelectByID2("", "FACE", -0.4332349164914, -0.1431037474702, -0.05999999999989, True, 0, Nothing, 0)
        selFace = swSelMgr.GetSelectedObject6(2, -1)

        
Dim beamArray As Object() = {selBeam}

        
' Create the force
        data(0) = 100.0#
        data(1) = 100.0#
        data(2) = 100.0#
        data(3) = 100.0#
        data(4) = 100.0#
        data(5) = 100.0#
        
Dim forceArray As Object() = {data(0), data(1), data(2), data(3), data(4), data(5)}

        rowNum = 3

        distValue(0) = 10.0#
        distValue(1) = 50.0#
        distValue(2) = 100.0#

        forceValue(0) = 100.0#
        forceValue(1) = 0.0#
        forceValue(2) = 50.0#

        
' Add force: Total Load - Triangular
        swsCWForce = swsLBCMgr.AddForce3(swsForceType_e.swsForceTypeForceOrMoment, swsSelectionType_e.swsSelectionBeams, 2, swsTableDrivenInterpolationType_e.swsLinear, swsTableDrivenDistOption_e.swsPercentage, rowNum, distValue, forceValue, True, True, swsBeamNonUniformLoadDef_e.swsTotalLoad, swsBeamNonUniformLoadType_e.swsTriangularLoad, 4, 100, (forceArray), False, False, (beamArray), selFace, True, errCode)
        forceType =
"Total Load - Triangular"
        LoadError(swApp, forceType, errCode)

        
' Add force: Total Load - Elliptical
        swsCWForce = swsLBCMgr.AddForce3(swsForceType_e.swsForceTypeForceOrMoment, swsSelectionType_e.swsSelectionBeams, 2, swsTableDrivenInterpolationType_e.swsLinear, swsTableDrivenDistOption_e.swsPercentage, rowNum, distValue, forceValue, True, True, swsBeamNonUniformLoadDef_e.swsTotalLoad, swsBeamNonUniformLoadType_e.swsEllipticalLoad, 4, 100, (forceArray), False, False, (beamArray), selFace, True, errCode)
        forceType =
"Total Load - Elliptical"
        LoadError(swApp, forceType, errCode)

        
' Add force: Total Load - Parabolic
        swsCWForce = swsLBCMgr.AddForce3(swsForceType_e.swsForceTypeForceOrMoment, swsSelectionType_e.swsSelectionBeams, 2, swsTableDrivenInterpolationType_e.swsLinear, swsTableDrivenDistOption_e.swsPercentage, rowNum, distValue, forceValue, True, True, swsBeamNonUniformLoadDef_e.swsTotalLoad, swsBeamNonUniformLoadType_e.swsParabolicLoad, 4, 100, (forceArray), False, False, (beamArray), selFace, True, errCode)
        forceType =
"Total Load - Parabolic"
        LoadError(swApp, forceType, errCode)

        
' Add force: Centered Load - Triangular
        swsCWForce = swsLBCMgr.AddForce3(swsForceType_e.swsForceTypeForceOrMoment, swsSelectionType_e.swsSelectionBeams, 2, swsTableDrivenInterpolationType_e.swsLinear, swsTableDrivenDistOption_e.swsPercentage, rowNum, distValue, forceValue, True, True, swsBeamNonUniformLoadDef_e.swsCentralLoad, swsBeamNonUniformLoadType_e.swsTriangularLoad, 4, 100, (forceArray), False, False, (beamArray), selFace, True, errCode)
        forceType =
"Centered Load - Triangular"
        LoadError(swApp, forceType, errCode)

        
' Add force: Centered Load - Elliptical
        swsCWForce = swsLBCMgr.AddForce3(swsForceType_e.swsForceTypeForceOrMoment, swsSelectionType_e.swsSelectionBeams, 2, swsTableDrivenInterpolationType_e.swsLinear, swsTableDrivenDistOption_e.swsPercentage, rowNum, distValue, forceValue, True, True, swsBeamNonUniformLoadDef_e.swsCentralLoad, swsBeamNonUniformLoadType_e.swsEllipticalLoad, 4, 100, (forceArray), False, False, (beamArray), selFace, True, errCode)
        forceType =
"Centered Load - Elliptical"
        LoadError(swApp, forceType, errCode)

        
' Add force: Centered Load - Parabolic
        swsCWForce = swsLBCMgr.AddForce3(swsForceType_e.swsForceTypeForceOrMoment, swsSelectionType_e.swsSelectionBeams, 2, swsTableDrivenInterpolationType_e.swsLinear, swsTableDrivenDistOption_e.swsPercentage, rowNum, distValue, forceValue, True, True, swsBeamNonUniformLoadDef_e.swsCentralLoad, swsBeamNonUniformLoadType_e.swsParabolicLoad, 4, 100, (forceArray), False, False, (beamArray), selFace, True, errCode)
        forceType =
"Centered Load - Parabolic"
        LoadError(swApp, forceType, errCode)

    
End Sub

    Sub LoadError(ByVal swApp As Object, ByVal force As String, ByVal errorCode As Long)

        
Select Case errorCode
            
Case 18
                ErrorMsg(swApp,
"You cannot apply triangular and centered load distribution on multiple beams")
            
Case 19
                ErrorMsg(swApp,
"You cannot apply a zero intensity load")
            
Case 20
                ErrorMsg(swApp,
"Invalid selection")
            
Case 21
                ErrorMsg(swApp,
"The table-driven data is invalid")
            
Case 22
                ErrorMsg(swApp,
"In the table-driven distance data, the distance value from the previous row cannot be greater than the distance value in the next row")
            
Case Is <> 0
                ErrorMsg(swApp,
"No forces applied")
            
Case 0
                Debug.Print(force)
        
End Select
    End Sub

    Sub ErrorMsg(ByVal swApp As Object, 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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