Week- 6 - Solid meshing
Introduction:
1. Objective:
The objective of this analysis is to perform meshing on a Rear Mirror component using ANSA and pass all quality criteria, geometry check and proper mesh flow.
CAD Model Image
2. Procedure:
Import CAD Model
· The CAD geometry was imported into ANSA using .iges format.
Check Geometry
· Removing all single cons available in model
· If the faces is deleted, creating new faces by selecting fitted option
· Removing attached two surfaces, by doing topo
· Orient is used to orient all surfaces into one direction
· If there is unchecked faces it should be cleared
· Finally Status shows 100% correct
· After doing these correction, model shown as below
3. Meshing Parameters
· Element Type Selection
§ The choose of element type for feature capturing
§ For curved surface area Ortho Tria is used
§ For flat area normal Tria is used
§ This impacts the accuracy of the solution
· Mesh Density
§ The mesh density is a critical factor in ensuring the accuracy of the FEA results
§ The given quality criteria is used like Min, Max length
§ Specified algorithm used to refine the mesh based on results
As shown below
· Volume Mesh
§ After deploy surface mesh Volume mesh should be done
§ There is two algorithm like Tetra FEM, Tetra rapid
§ We used Tetra FEM in model
§ Volume mesh is generated inside the CAD
§ The first set will formed in structured from there it formed like unstructured
§ It doesn’t form any pattern
§ Tetra model is the tria model whose surface mesh is generated into volume
4. Mesh Quality Check
· In ANSA, the volume mesh quality can be checked through checks manager
· Quality parameters should be given like collapse 0.2
· Checks the model like if there is any kinks, dips in model
as shown below
5. Learing outcomes;
ü ANSA Tools
ü Geometry cleanup for Tabla
ü Differentiate the tria and ortho tria
ü Different algorithm is usedfor volume mesh
ü Mesh the Rear Mirror with less tria concentration and proper mesh flow.
6. Conclusion
· In this report, the meshing process for the given CAD model in ANSA was successfully done.
· Meshing is done in proper mesh flow
· The mesh should capture the geometry of the model with sufficient detail, especially in regions where curved surfaces or complex behavior are expected.
Final Meshed Image
