Say we have multiple fastener holes (defined say as named selections), how can we then add automatically beams inside mechanical?
Below is the code for the automatic beam creation inside mechanical:
It needs to have a cross section folder, and named selections created - each named selection is of the 2 edges that are to be connected by the beam. Beam will be connected to these 2 edges via 2 fixed joints (MPC rigid). Finally a Bolt-Pretension is added to the new beam.
model = ExtAPI.DataModel.Project.Model analysis=model.Analyses[0] ns=model.NamedSelections.Children construction_geometry = model.AddConstructionGeometry() # add folder # add line object for n in ns: # get named sel. hole edge pair needs to be there (so 2 edges) nId=n.Location.Ids a = construction_geometry.AddConstructionLine() pointlist=[] for edge in nId: e = ExtAPI.DataModel.GeoData.GeoEntityById(edge) if str(e.CurveType) =="GeoCurveCircle": ce=e.Centroid # get centre of hole #print(ce) pointlist.append((ce[0],ce[1],ce[2])) # beam points at the centre points=a.CreatePoints(pointlist) for i in range(0,len(points)-1): edge_collection_5 = a.CreateStraightLines([points[i],points[i+1]], [(0,1)]) # create the points and add beam beam=a.AddToGeometry() # create beam geobeam=beam.Bodies[0] # treebody=ExtAPI.DataModel.Project.Model.Geometry.GetBody(geobeam) # get tree body beam cross_sec=ExtAPI.DataModel.GetObjectsByType(DataModelObjectCategory.CrossSections)[0].AddCircularCrossSection() cross_sec.Radius = Quantity(float(e.Radius), "m") treebody.CrossSectionSelection=cross_sec connections = Model.Connections connectiongroup = connections.AddConnectionGroup() j=0 for edge in nId: # create mpc rigid connections joint = connectiongroup.AddJoint() selection = ExtAPI.SelectionManager.CreateSelectionInfo(SelectionTypeEnum.GeometryEntities) selection.Ids=[geobeam.Vertices[j].Id] joint.MobileLocation = selection selection = ExtAPI.SelectionManager.CreateSelectionInfo(SelectionTypeEnum.GeometryEntities) selection.Ids=[edge] joint.ReferenceLocation = selection j=j+1 bopr=analysis.AddBoltPretension() bopr.SetDefineBy(1,BoltLoadDefineBy.Load) load = Quantity(1000,'N') bopr.Preload.Output.Field.Output.SetDiscreteValue(0,load) selection = ExtAPI.SelectionManager.CreateSelectionInfo(SelectionTypeEnum.GeometryEntities) selection.Ids=[geobeam.Edges[0].Id] bopr.Location=selection
