Week 5 Challenge : Surface wrap on Automotive Assembly

Aim: To do surface wrap

Procedure:

1. Surface wrap is used for meshing the component from the outside
2. If we wrap any component only after the surface is visible
3. Remove unnecessary surfaces and wrap the others
4. Used to study outside flow analysis or simulation
5. Started with engine
6. Rings are usually deleted
7. Isolate the unchecked surfaces(very small size not supposed to have) and delete them
8. Rings might have been created to make fillets. So delete the rings
9. Remove the overlapped surface
10. Use topo to merge the cons. Triple cons is not a problem as only surface wrap is done.
11. Use PID-wise selection and OR to hide needed parts and delete all circular and spherical structures that are not needed.
12. Geometrical cleanup is done in surface mesh and is not needed in surface wrap
13. Do the same for the gearbox and transmission
14. After this topological clean-up, next is a surface wrap and merging them
15. The surface must be closed with no holes for surface wrap
16. Remove the belts too because a thin surface won't capture well in surface wrap
17. Fills all the major holes
18. Merge other models into the engine and clean their geometrical errors too
19. File> Merge> Choose file> Open> Merge parts> OK: To merge two models
20. Mesh> Elements> Wrap: To mesh wrap
21. Surface wrap is made for internal flow analysis
22. Delete the PIDs which have no surfaces present
23. The compress option is used to forcefully delete the PIDs which is not getting deleted in the PID region
24. Mesh> Elements> Wrap> Constant length> Parameters> Target length 3> Contents> Select all the PIDs> Run: To surface wrap
25. Turn on FE Mode to see the surface wrap ND Geometry to see the model

Learning Outcome: Learned to do geometrical clean-up for surface mesh, merge models, and do surface wrap. Learned about the surface wrap.

Result: Merged surface-wrapped model with engine, transmission, and gearbox.

Conclusion: If the surface mesh is properly done the model will be see-through from both ends if end most surfaces are removed. Surface wrap is used to create a common inside volume. There shouldn't be any open surface externally to do surface wrap because it may cause errors(it won't make a single volume internally).

* The screenshots of the steps are attached below because it causes trouble to keep them in the middle of the text. Kindly refer them.

** Result file: https://drive.google.com/file/d/1I9_Yi5Q0QSdPOLIy56Lp6duD6oMBG1o0/view?usp=sharing