Presentation is loading. Please wait.

Presentation is loading. Please wait.

Section 6 Meshing in SimLab. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Import CAD.

Similar presentations


Presentation on theme: "Section 6 Meshing in SimLab. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Import CAD."— Presentation transcript:

1 Section 6 Meshing in SimLab

2 Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Import CAD model Open Meshing Application Surface mesh the CAD model Check surface mesh Water tight check Element overlap check Element quality check Fix errors in surface mesh Manual cleanup Automated cleanup Volume mesh Verify element quality Meshing Process

3 Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Step 1: Import the CAD model When importing the model, the user will be prompted for the units used to create the model. There are options to import solid bodies, sheet bodies and wire bodies. The Parasolid model can be imported as facets. The overlapping faces of the Parasolid parts can be imprinted during import.

4 Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information

5 Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information To open meshing tool bar select Applications – Meshing from the Menu Bar. Meshing Toolbar Step 2: Open Meshing Toolbar

6 Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Select “Surface/Curve Mesh” in the Meshing Tool Bar to open the Surface Mesh dialog box. Select Entities ( Body or Face). Enter the desired mesh parameters and select OK. Step 3: Surface Mesh

7 Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information The Body is surface meshed. A new model is created with the mesh body inside. Step 3: Surface Mesh

8 Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Water Tight Check: There should be no cracks in the surface mesh. Use “Free Edge” function in Meshing tool bar to find the free edges. Element Intersection Check: The surface mesh should not intersect / overlap Use “Elem Intersection” function in Meshing tool bar. Tri-Quality check: As a default, the surface mesher will generate a tri mesh that has an aspect ratio of 10. This can be modified to suit the quality criteria. Use “Quality Check” and “Q Check” functions in the Meshing tool bar to check the quality of the Tri elements. Step 4: Surface Mesh Check

9 Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information If any of the check fails, use cleanup tool to clean up the mesh. Clean up can be done using Automated tools and Manual tools. Automated Cleanup Fill Crack – Used to fill the cracks in the body. Fille Holes – Used to fill holes in the body. AutoTriClean – Used to clean up the Tri mesh based on Aspect ratio. AutoQuadClean – Used to clean up the Quad mesh. Step 5: Surface Mesh Cleanup

10 Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Step 5: Surface Mesh Cleanup Manual Cleanup Create Element Split Swap Collapse Equivalence Combine 2Tris to Quad Split Quad to Tris Delete Element Update Layers

11 Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Select “Volume Mesh” from the Meshing tool bar to open the volume mesh dialog box. Specify the desired element type, average element size and element quality. Select OK to generate the volume mesh. Step 6: Volume Mesh

12 Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Step 6: Volume Mesh

13 Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Right click the Volume mesh body in the tree view and select Properties to show details of the mesh body. Step 6: Volume Mesh

14 Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Step 7: Check Quality Use Quality Check and Q Check tools in Mesh toolbar to verify element quality. The elements that fails a particular quality criteria can be found, displayed and cleaned automatically.


Download ppt "Section 6 Meshing in SimLab. Copyright © 2010 Altair Engineering, Inc. All rights reserved.Altair Proprietary and Confidential Information Import CAD."

Similar presentations


Ads by Google