今天我们来讲个小例子。
是关于SOLIDWORKS Simulation的。
先说明一点，这东西我也不熟。有问题别问我

首先，我做了一个很难的分析，条件也是很复杂，具体操作我就不说了，分析结果如下:

当然这个图和我们今天要做的事情 关系不大，我们主要了解 一下如何连接到SOLIDWORKS Simulation 上并修改载荷参数，重新运行分析，得到新的结果 。
具体的api查找过滤和之前看帮助类似，我就直接上图了:

下面是关键代码:
把上面的力的大小从100 改成150，然后重新进行风格的划分，运行计算。
`
private void btnSimStudy_Click(object sender, EventArgs e)
{
var actPath = RegDllPath(“”);

        var start = actPath.Substring(0,actPath.IndexOf("CSharpAndSolidWorks",0));var partPath = $@"{start}CSharpAndSolidWorks\CSharpAndSolidWorks\TemplateModel\Simulation API Demo.SLDPRT";SldWorks swApp = PStandAlone.GetSolidWorks();CWModelDoc swsActDoc = default(CWModelDoc);CWStudyManager swsStudyMngr = default(CWStudyManager);CWStudy swsStudy = default(CWStudy);CWLoadsAndRestraintsManager swsLBCMgr = default(CWLoadsAndRestraintsManager);CWForce swsCWForce = default(CWForce); int errors = 0;int warnings = 0;string fileName = partPath;// 打开模型var swModel = (ModelDoc2)swApp.OpenDoc6(fileName, (int)swDocumentTypes_e.swDocPART, (int)swOpenDocOptions_e.swOpenDocOptions_Silent, "", ref errors, ref warnings);// Get the SOLIDWORKS Simulation objectdynamic COSMOSWORKS = default(dynamic);dynamic COSMOSObject = default(dynamic);// Determine host SOLIDWORKS major versionint swVersion = Convert.ToInt32(swApp.RevisionNumber().Substring(0, 2));// Calculate the version-specific ProgID of the Simulation add-in that is compatible with this version of SOLIDWORKSint cwVersion = swVersion - 15;String cwProgID = String.Format("SldWorks.Simulation.{0}", cwVersion);Debug.Print(cwProgID);// Get the SOLIDWORKS Simulation objectCOSMOSObject = swApp.GetAddInObject(cwProgID);COSMOSWORKS = COSMOSObject.CosmosWorks;// Open and get active documentswsActDoc = (CWModelDoc)COSMOSWORKS.ActiveDoc;if (swsActDoc == null) ErrorMsg(swApp, "No active document");// Create new static studyswsStudyMngr = (CWStudyManager)swsActDoc.StudyManager;if (swsStudyMngr == null) ErrorMsg(swApp, "No CWStudyManager object");//得到第一个算例对象swsStudy = (CWStudy)swsStudyMngr.GetStudy(0);//算例名称，可以区分多个算例   swsStudy.Nameif (swsStudy == null) ErrorMsg(swApp, "No CWStudy object");swsLBCMgr = (CWLoadsAndRestraintsManager)swsStudy.LoadsAndRestraintsManager;//get the Force Feature//这是是第一个条件，所以参数写0var sCwForce = swsLBCMgr.GetLoadsAndRestraints(0, out int errcode);if (sCwForce != null){var swForce = (CWForce)sCwForce;swForce.ForceBeginEdit();//修改值为150swForce.NormalForceOrTorqueValue = 150;  var res = swForce.ForceEndEdit();}//Create meshvar CwMesh = (CWMesh)swsStudy.Mesh;if (CwMesh == null) ErrorMsg(swApp, "No mesh object");CwMesh.Quality = 1;CwMesh.GetDefaultElementSizeAndTolerance(0, out double el, out double tl);var errCode = swsStudy.CreateMesh(0, el, tl);if (errCode != 0) ErrorMsg(swApp, "Mesh failed");//RunswsStudy.RunAnalysis();}public void ErrorMsg(object swApp, string Message){MessageBox.Show(Message);MessageBox.Show("'*** WARNING - General");MessageBox.Show("'*** " + Message);MessageBox.Show("");}

`
这样结果出来了，至于怎么拿到最新的结果 ，或者说截图的话后面有机会再讲了。
源码位置:
https://gitee.com/painezeng/CSharpAndSolidWorks