Week 5 Challenge : Surface wrap on Automotive Assembly
AIM:
To understand the process of surface wrapping around an assembly, involving surface meshing throughout the entire volume, perform the following steps for the provided model: conduct topological cleanup by merging all three components and then proceed with meshing.
Target length = 3mm
INTRODUCTION:
Surface wrap is the process of meshing where the designer is only interested in the outside surface of the assembly i.e., the component inside the volume will be kept as it is. This kind of meshing is only used for the simulation in which we are interested in the outer surface only like external flow simulations
MODEL:
- ENGINE:
As we can see there are many rings like surface which don’t look like of any use as this ring are used by designer sometime to create fillets in the model so we need to delete all those surfaces which don’t have any significance Now, in wrap meshing the interior part is not that important so we don’t need to worry about all the single cons or all the overlap surfaces but it is good practice to delete all the unwanted surfaces so make the geometry as fine as we can
MODEL:
For the above model we need to start with deleting the rings on every fillet
A convenient method to quickly identify all the rings is to utilize the NOT Option in conjunction with PID selection. By hiding the essential parts, the rings become more visible, allowing for a thorough examination. Subsequently, one can meticulously delete the undesired surfaces.
Furthermore, the pipes visible as overlapping surfaces above are not crucial and can be deleted. In wrap meshing, parts with small thickness can also be removed since we are employing the same target length for all components.
Like this belt
After deleting and addressing all the open holes, it is crucial to close them. In wrap meshing, the outer surface is selected, and if there are openings, the meshing process may extend into the interior, which is undesired. Therefore, closing all the open holes is essential.
- TRANSMISSION:
We don’t need to worry about the internal surface but on external surface we need to close the holes and make it even
- GEARBOX
Similarly, we need to do topo clean-up and close all the openings
MERGE:
After cleaning all the models, we can merge them wo create an assembly, For merge we can go to FILE-> MERGE
Select the required geometry
This is how the assembly looks like
SURFACE WRAP:
We can find the wrap option in the mesh option
Select constant length as we have same target length through out
Double-click on the first empty space to prompt a pop-up, then click on "Untitled" below the parameters. In this section, we will specify the target length.
Now selecting contents so double click on 0
Place all PIDs in the right box for selection. As illustrated, there are 115 items in the octree scenario. The process is expected to take approximately 10-15 minutes.
CONCLUSION:
We acquired the knowledge of merging the geometry, followed by the creation of the surface wrap mesh.
LINK TO THE MODEL
https://drive.google.com/file/d/1orcc4NVv1D6-ynzG0tu3rb7eW4FR_2Im/view?usp=sharing