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Create Frequency Study with Solid Mesh Example (C#)

This example shows how to create a frequency study with solid mesh.

//--------------------------------------------------------------------------
// 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 install_dir\api\redist\CLR2 folder and
//    select SolidWorks.Interop.cosworks.dll).
// 3. Modify the path to solidworks materials.sldmat if needed.
// 4. Run the macro.
//
// 1.  Assembly opened.
// 2.  Default frequency study results plots are specified.
// 3.  Frequency study with solid mesh created.
// 4.  Same material applied to all bodies.
// 5.  Mesh created with default global size and tolerance parameters.
// 6.  Solver set to automatic.
// 7.  Number of frequencies set.
// 8.  Analysis run.
// 9.  Results returned: frequencies and mass participation factors.
// 10. Inspect the frequency study results plots.
// -----------------------------------------------------------------

using SolidWorks.Interop.sldworks;

using SolidWorks.Interop.swconst;

using SolidWorks.Interop.cosworks;

using System;

namespace CreateFrequencyStudySolidMeshCSharp.csproj

{

    partial class SolidWorksMacro

    {

        public void Main()

        {

            CosmosWorks COSMOSWORKS = default(CosmosWorks);

            CwAddincallback COSMOSObject = default(CwAddincallback);

            CWModelDoc ActDoc = default(CWModelDoc);

            CWStudyManager StudyMngr = default(CWStudyManager);

            CWStudy Study = default(CWStudy);

            CWSolidManager SolidMgr = default(CWSolidManager);

            CWSolidComponent SolidComponent = default(CWSolidComponent);

            CWSolidBody SolidBody = default(CWSolidBody);

            CWMesh CwMesh = default(CWMesh);

            CWResults CWResult = default(CWResults);

            CWFrequencyStudyOptions FrequencyOptions = default(CWFrequencyStudyOptions);

            int status = 0;

            int warnings = 0;

            int errCode = 0;

            int errorCode = 0;

            int CompCount = 0;

            int BodyCount = 0;

            int j = 0;

            int i = 0;

            int returnValue = 0;

            object Freq = null;

            object MassPart = null;

            double el = 0;

            double tl = 0;

 

            // Get SOLIDWORKS Simulation object

            COSMOSObject = (CwAddincallback)swApp.GetAddInObject("SldWorks.Simulation");

            if (COSMOSObject == null) ErrorMsg("COSMOSObject object not found", true);

            COSMOSWORKS = (CosmosWorks)COSMOSObject.CosmosWorks;

            if (COSMOSWORKS == null) ErrorMsg("COSMOSWORKS object not found", true);

 

            // Get active document

            swApp.OpenDoc6("C:\\Program Files\\SOLIDWORKS Corp\\SOLIDWORKS\\Simulation\\Examples\\shaft.sldasm", (int)swDocumentTypes_e.swDocASSEMBLY, (int)swOpenDocOptions_e.swOpenDocOptions_Silent, "", ref status, ref warnings);

            ActDoc = (CWModelDoc)COSMOSWORKS.ActiveDoc;

            if (ActDoc == null) ErrorMsg("No active document.", true);

 

            // Add default frequency study result plot of resultant amplitude
            errCode = ActDoc.AddDefaultFrequencyOrBucklingStudyPlot(true, 0, true, (int)swsFrequencyBucklingResultDisplacementComponentTypes_e.swsFrequencyBucklingDisplacement_URES);

 

            // Create new frequency study

            StudyMngr = (CWStudyManager)ActDoc.StudyManager;

            if (StudyMngr == null) ErrorMsg("No StudyMngr object.", true);

            Study = (CWStudy)StudyMngr.CreateNewStudy3("Frequency", (int)swsAnalysisStudyType_e.swsAnalysisStudyTypeFrequency, (int)swsMeshType_e.swsMeshTypeSolid, out errCode);

            if (Study == null) ErrorMsg("Study not created.", true);

 

            // Get number of solid components

            SolidMgr = (CWSolidManager)Study.SolidManager;

            if (SolidMgr == null) ErrorMsg("SolidManager object not created.", true);

            CompCount = SolidMgr.ComponentCount;

 

            // Apply SOLIDWORKS material to rest of components

            SolidBody = null;

            SolidComponent = null;

            for (j = 0; j <= (CompCount - 1); j++)

            {

                SolidComponent = (CWSolidComponent)SolidMgr.GetComponentAt(j, out errorCode);

                BodyCount = SolidComponent.SolidBodyCount;

                for (i = 0; i <= (BodyCount - 1); i++)

                {

                    SolidBody = (CWSolidBody)SolidComponent.GetSolidBodyAt(i, out errCode);

                    if (errCode != 0) ErrorMsg("No solid body", true);

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

                    if (returnValue != 1) ErrorMsg("No material applied.", true);

                    SolidBody = null;

                }

            }

 

            // Set meshing

            CwMesh = (CWMesh)Study.Mesh;

            if (CwMesh == null) ErrorMsg("No mesh object.", false);

            CwMesh.Quality = 1;

            CwMesh.GetDefaultElementSizeAndTolerance(0, out el, out tl);

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

            if (errCode != 0) ErrorMsg("Mesh failed.", true);

 

            // Set solver type as automatic

            FrequencyOptions = (CWFrequencyStudyOptions)Study.FrequencyStudyOptions;

            if (FrequencyOptions == null) ErrorMsg("No frequency options object.", false);

            FrequencyOptions.SolverType = 1;

            FrequencyOptions.NoOfFrequencies = 8;

 

            // Run analysis

            errCode = Study.RunAnalysis();

            if (errCode != 0) ErrorMsg("Analysis failed", true);

 

            // Get results: frequencies and mass participation factors

            CWResult = (CWResults)Study.Results;

            if (CWResult == null) ErrorMsg("No result object.", false);

            Freq = CWResult.GetResonantFrequencies(out errCode);

            MassPart = CWResult.GetMassParticipation(out errCode);

        }

 

 

        private void ErrorMsg(string Message, bool EndTest)

        {

            swApp.SendMsgToUser2(Message, 0, 0);

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

            swApp.RecordLine("'*** " + Message);

            swApp.RecordLine("");

            if (EndTest)

            {

            }

        }

 

        /// <summary>

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

        /// </summary>

        public SldWorks swApp;

    }

}



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