Week 3 - 2D meshing for Sheet metal

Aim:

• To check the geometry of the given model.
• To find the mid surface of the given model.
• To generate a mesh with the given quality criteria of the given model.

Given CAD model:

Procedure:

1. Open the cad model in ansa pre proccesser.
2. Check the geometry from the tools section mentioned as 'check'.
3. Resolve the geometry issues.
4. Generate the mid surface of the given cad model 'Manually' or 'Automatically'.
5. Manually: Using the 'offset' option in the faces module.
6. Automatic: Using the 'mid surfacing' option in the faces module.
7. After generating the mid surface assign a separate property using the 'set PID' option from the faces module.
8. Then switch to the mesh module And Assign the length i.e. 5 to the mid surface using the length option in the parameters module.
9. After that check whether the holes are properly aligned with the nearest parameters or not
10. If not then Allign them using the slide option parameters module
11. Then check the numbers on it should be an even number
12. Then start meshing the features first and then faces using the best option from the mesh generation module.
13. To get a better mesh, Make sections to the faces using cut or pro.cut in the Macros module.
14. Using the Reconst option we can reconstruct the mesh.
15. Using the smooth option we can smooth the mesh.
16. Using the split or swap option we can rectify the errors in the mesh.

Result: hence, the mesh is generated to the given Cad model with Required Quality criteria.