Project 1 - 2D meshing on the instrumental Panel

AIM:

For the given component, check for the geometrical errors and mesh with the given element Quality criteria. After meshing the component, the thickness has to be assigned.

Write a detailed report on your meshing process and also mention which method you used to extract the mid-surface along with the reason.

PROCEDURE:

1. Download the given model from the project. Open in this model in ANSA.
2. 
3. After opening of the model in ANSA do topology.
4. Now go for the geometrical check-up. In this geometrical check up we find some errors.
5. 
6. Fix those error. And we can see that given model is not a closed volume. we have to close open volume by adding the face.
7. Now we have many options to extract the mid surface from the model. CASTING AUTO- MID SURFACING.
8. 
9. But casting process will give many errors.it take lot time to solve those problems.
10. And auto mid surfacing will place take some time and no grantee that it will give good mis surface because this model has various thickness and more complicated entities.
11. So, I used here offset method.
12. The main part of the body has a thickness of 0.6 mm. so, I gone with TOPO MODULE > FACES > OFFSET > SELECT THE ENTITY TO BE OFFSET > 0.6/ 2.
13. 
14. Once the mid of main body was acquired, now we can take the mid of complicated features one by one using manual commands like Faces>Middle, Faces>offset.
15. 
16. After extracting the all-mid surfacing from the parent part. Go for geometric check-up.
17. Here I found many errors. Now I go with geometry clean up by removing unwanted surfaces, providing proper surface and removing sharp edges.
18. After geometry clean up, we can go for meshing
19. In meshing we two options. Bach meshing and spot meshing.
20. Now I am going with batch meshing. Because manual defeaturing of model takes lot of time. But in batch meshing reduce that time.
21. In batch meshing we have save this mid surface model as new part. Now go to model manger name this mid surface as mid. Save as new part.
22. 
23. For batch mesh TOOL BAR > BATCH MESH. Batch mesh manager dialogue box will open. There we will empty.
24. Click on NEW > MESHING SCENARIO. Double click on 0 and select the model from left dialogue box click GREEN ARROW MARK > OK. That model comes into right dialogue box.
25. 
26. Double click on mesh perimeter. Give the TARGET LENGTH AS 4 mm and MINIMUM LENGTH AS 2 mm. and change type mesh as MIXED, then click ok.
27. 
28. Double click on quality criteria and give the values as given in question, then click ok.
29. 
30. Status shows as empty. Now run the mesh it takes some time and mesh will complete.
31. Now to go for hidden mode to check weather element is failing due to element quality criteria. If any element is failing correct it using IMPROVE, RECONSTRUCTION and SMOOTH
32. Now correct the mesh using options like SPLIT, SWAP, JOIN AND MOVE.
33. Make off elements zero.
34. Now completing the process save the file.
35. 

LEARNING OUTCOMES:

1. How to perform on complicated shapes.
2. Choosing of best method among the different methods.
3. Picked up speed in performing different tools in ANSA.

CONCLUSION:

From this project we conclude that I can perform the mid surface and meshing for complicated shapes.

NOTE:

I have upload this file in google. I have tried to upload the file in the given link due to large size it’s not accepting the file

https://drive.google.com/file/d/14xozGKVzFJJFzd4EFdcZgZc5iHGb4se-/view?usp=sharing