Week 5 Challenge : Surface wrap on Automotive Assembly

Aim/Objective

 For the given models, check for the geometrical errors and delete surfaces which are unwanted for Surface wrap as shown in the videos. After clearing geometry, merge all 3 models and perform surface wrap.

 Target length for Wrap = 3 mm

Procedure

Step 1: Import the Geometry Model

File -> open -> (select the file)

 

 

 

Step 2: Topology cleanup

 Delete unwanted objects/entities –

• For performing a surface wrap, only the external surface of the geometry needs to be cleaned.
• Delete the unwanted and unchecked faces.

Engine

 

 

 

 

 

 

 

 

Gearbox

 

Transmission

 

 

Close open faces-

• Close all the open faces on the exterior of the geometry.
• This is essential to perform a surface wrap, as the algorithm will try to accommodate the open faces present on the geometry to a certain extent. This is not desirable as it can distort the mesh and generates undesirable features on surface mesh.

Engine

 

 

Gearbox

 

 

Transmission

 

Merge components-

• Elements need to be merged to obtain a common volume.
• There are two junctions which need to be merged: ‘Gearbox – Transmission’, ‘Transmission – Engine’

 

Step 3: Surface wrap

• "Mesh" -> "Wrap" -> "Constant Length"

   

• Settings used for the function: Element Length = 3 mm

 

• Include all Entities as the contents for generation of surface mesh.

 

• Delete the original geometry as it is no longer required

 

 Step 4: Confirm the surface wrap

• Proper merging of the components can be confirmed by hiding the elements at the opposite ends of the merged model.
• If there is no obstruction while seeing through the model, then the model can be considered to have a common volume.

 

Learning Outcomes

• Topology Cleanup
• “Compress” tool
• Surface wrap

Result

• Geometry checked for abnormalities and all geometrical errors solved
• Given models merged to make a single model
• Surface Wrap Generated for the merged models

 Final Surface Wrap:

Conclusion

The given models were cleaned up and merged. The final model was used to generate a surface wrap which created a single volume enclosing the model.