Week 4

Aim: To check for the geometrical errors and mesh the given component as per the provided element Quality criteria.

Procedure:

1. First openedthe model file using the File open

2. First switched to mesh module to change Length in Perimeters to have more refined visuality of the components of model.

3. Then performed topology using Topo option under Faces option in topo module.

4. Then checked the opened model for any geometrical errors by performing Geometric checks under the checks manager.

5. After correcting the geometric errors using the various tools. The corrected components are shown in pics.

6. Measured the thickness of all surfaces in order to create mid surfaces.

7. Now extracted mid surface for the all the surfaces of model using the offset faces option under the Faces menu in the TOPO module. Also assigned the PID for the same using the Set PID option under the Faces.

Mid surface

PID Assigned

8. Now performed Geometric Cleanup on the created Mid surfaces to check for any error. If found corrected.
9. Now set the desired Quality criteria’s using the Quality Criteria tool in the Utilities. Also defined the mesh parameter as required using the Mesh Parameters tool in the utilities.

Qulity Criteria:

Mesh Parameters:

10. Now meshed the components as per the set criteria’s using the Best Mesh option under the Mesh Generation in Mesh module.

11. Then corrected the elements failing using the Smooth, Reconstruct options under the shell mesh in Mesh Module. Also used Split elements option under the elements in Topo Mode.

Failing Elements:

Corrected Elements:

12. To visualize the assigned thickness to the mid surfaces of components activated the Draw shells as Solid option in the Quality criteria< Presentation parameters.

Result: The resulting model is free from errors except for those created due to triple cons).

Learning Outcome: In this challenge,

• Learned to create mid surface foe varying thickness model.
• Also learned to mesh the model as per set quality criteria’s.

Conclusion:

• Performed Geometric cleaning on the provided model.
• Extracted mid surfaces manually for each surface of the model.
• Meshed the components as per required criteria with elements passing the set criteria’s.