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FEM NetzManipulieren
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| Menüeintrag
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| Netz → GMSH-Verfeinerungen → Verfeinerung bearbeiten
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| Arbeitsbereich
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| FEM
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| Standardtastenkürzel
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| Keiner
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| Eingeführt in Version
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| 1.2
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| Siehe auch
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| FEM Tutorial
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Beschreibung
Der Befehl FEM NetzManipulieren ermöglicht es, die Ausgabe einer Verfeinerung auf verschiedene Weise zu bearbeiten.
Aufgaben-Fenster des MeshManipulate-Werkzeugs
Anwendung
- To enable the command a
Mesh From Shape by Gmsh must be provided first.
- Select the Mesh object in the Tree View.
- There are several ways to invoke the command:
- Press the
Manipulate Refinement button.
- Select the Mesh → GMSH Refinements →
Manipulate Refinement option from the menu.
- Select the manipulation type:
- Restrict - restricts the application of the child refinement to the selected reference elements
- Use the Include boundary checkbox to include the boundary of the selected reference elements
- Threshold - applies a threshold to the child refinements' value:
- Use the input value vs output size fields to control the thresholds
- Optionally, use the Linear interpolation checkbox to define if interpolation of the mesh size between SizeMinimum and SizeMaximum should be linear or sigmoid function
- Optionally, use the Stop at max input checkbox
- Mean - calculates the mean value of child refinement G
- Gradient - computes the finite difference gradient of child refinement G
- Select Kind: X, Y, Z or Mean
- Specify Delta
- Curvature - computes the curvature of child refinement G
- Laplacian - computes finite difference of the Laplacian of child refinement G
- Optionally, press the
button to edit the global refinement preview settings:
- Auto enable on open - automatically enables the visualization of the refinement mesh size when opening a refinement task dialog.
- Preview mesh fineness - determines how fine the preview mesh is. Larger number means finer mesh (smaller elements).
- Optionally, press the Visualize button to visualize the refinement mesh size output. It shows the mesh sizes given by the refinement as colors on a preview mesh. Note that the preview evaluates the refinement on a coarse mesh so details smaller than the mesh size may not be visible.
- Press the Add button. Select a vertex, edge, face or solid as reference geometries for restriction. To remove objects from the selection, press the Remove button.
- Click the OK button.
- Close the task.
- Result: You now should see a new
Manipulate object under the FEMMeshGmsh object in your active analysis container.
- Drag the refinement that should be altered into the
Manipulate object in the document tree. The refinement will be grouped under the Manipulate object.
- Double-click on the
FEMMeshGmsh parent object in your Model Tree and press Apply to force a mesh recalculation.
- Close the task.
Nachdem das Netz erstellt wurde, können seine Eigenschaften mit der Eigenschaften-Ansicht geändert werden. Nachdem eine Eigenschaft geändert wurde, muss der Gmsh-Dialog erneut geöffnet werden und auf die Schaltfläche Anwenden gedrückt werden. (Der Dialog kann während der Änderung der Eigenschaften geöffnet bleiben.)
Es können so viele verschiedene Verfeinerungsoperationen wie nötig erstellt werden.
Entfernungsbasierte Verfeinerung, beschränkt auf die Oberseite und deren Rand (hervorgehoben)
FEM
- Solve: Solver CalculiX, Solver Elmer, Solver Mystran, Solver Z88; Mechanical Equations: Elasticity Equation, Deformation Equation; Electromagnetic Equations: Electrostatic Equation, Electricforce Equation, Magnetodynamic Equation, Magnetodynamic 2D Equation, Static Current Equation; Flow Equation, Flux Equation, Heat Equation, Solver Job Control, Run Solver
- Results: Purge Results, Show Result, Apply Changes to Pipeline, Post Pipeline From Result, Pipeline Branch, Warp Filter, Scalar Clip Filter, Function Cut Filter, Region Clip Filter, Contours Filter, Glyph Filter, Line Clip Filter, Stress Linearization Plot, Data at Point Clip Filter, Calculator Filter; Filter Functions: Plane, Sphere, Cylinder, Box; Data Visualizations: Create Lineplot, Create Histogram, Create Table
Anwenderdokumentation
- Erste Schritte
- Installation: Herunterladen, Windows, Linux, Mac, Zusätzliche Komponenten, Docker, AppImage, Ubuntu Snap
- Grundlagen: Über FreeCAD, Graphische Oberfläche, Mausbedienung, Auswahlmethoden, Objektname, Voreinstellungseditor, Arbeitsbereiche, Dokumentstruktur, Objekteigenschaften, FreeCAD unterstützen, Spenden
- Hilfe: Anleitungen, Videoanleitungen
- Arbeitsbereiche: Std Base, Arch, Assembly, BIM, CAM, Draft, FEM, Inspection, Material, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework