Week- 5 - Solid meshing

3D Meshing (Volume Mesh) with tetra elements of a Rearview Mirror using ANSA
Aim: For the given Rear view mirror component, check for the geometrical errors and mesh the Surfaces with the given 2D element Quality criterias given below.

Objective:
Geometrical clean up
Generating 2D mesh
Prevolume check
Define volume
Generating 3D mesh

Procedure:
1. Import the model.

2. Perform cons resolution by going throu option Mesh>perimeter>length>select entire geometry> enter 1mm> click middle mouse button. please follow these steps to fine the geometric model.
3. Go to properties tab, switch on one of the component out of all.
4. Perform topo on it, as the model is not stiched together.
5. then do the geometry check operation for the component.

6. After understanding the geometry, and its properties go for meshing.
7. Assign Quality criteria before beginning with meshing.

8. supress the lines with option cut/join which is under faces if they would not make the mesh to meet quality criteria.

9. Then go for the Shell meshing of geometry that is 2d mesh and clearing quality issue like minimum and maximum length. Firstly we will go for meshing for flat surfaces with best mesh with element type tria follwed by for curved surfaced we will go with best mesh with element type ortho tria.

10. Use reconstruct for betterment in mesh quality for the selected area if they dont meet the quality criteria.

11. check for penetration>intersections. if they are no errors proceed to next step.

12. Defining volume for visible model and mesh the defined volume with tetrarapid.

13. Clearing quality issues in the volume mesh that is tet collapse in the given value.

14.Follow similar steps for remaining 3/4 components.

 

15. the final output will be as below by following above procedure.

Outcome from this project:
learned how to solid meshing.
Learned when to use tria and ortho tria.
Learned how to fix average length and tet collapase failure.

Conclusion:
Rear view mirror component is checked for the geometrical errors and meshed the Surfaces with the given 2D element Quality criterias and 3d meshing is done sucessfully.