Week 5 Challenge : Surface wrap on Automotive Assembly

Aim:

1. check for the geometrical errors and delete surfaces that are unwanted for Surface wrap.
2. After clearing geometry, Merge all 3 models and perform surface wrap.
3. Target length for Wrap = 3 mm

Procedure:

1. Geometry Cleanup : (Engine, Transmission & Gear Box) - Topo mode

• Open Engine.ansa
• 
• Using NOT operation in PID mode, deselect all the necessary components to identify the closed volumes inside, outside, around and unnecessary surfaces
• 
• Using the delete option, select the unnecessary surfaces and unchecked entities.
• Surface gleechings, triple cons, and single cons within the inside regions are not taken much into consideration as we are going to perform surface wrap
• Topo clean-up is highly concerned with the surface region as our major area of interest is surface wrap of this automotive assembly
• Open the transmission.ansa
• 
• NOT >PID MODE>
• 
• Delete the unchecked and unwanted surfaces & volumes
• Open the Gearbox.ansa
• 
• Delete the unchecked surfaces & unnecessary volumes using delete option.

2. Merging of Automotive Assembly - Topo mode

• Under file > Merge> Select the components (Gearbox, Engine, Transmission)
• 
• 

3. Surface Wrap of Automotive Assembly - Mesh Mode

• Next follows the surface wrap operations ensuring there is no open volumes or unnecessary surface entities.
• The open surfaces are closed using creation of New surfaces (coons / fill hole).
• 
• Next is Wrap using Constant Length ( Elements > Wrap > Constant Length)
• 
• The Whole assembly is selected and the target length =3mm and the smooth factors are assigned.
• 
• PIDs are to be assigned in the octree for the surface wrap
• The insignificant PIDs which are of no use are compressed executing COMPRESS tool.
• 
• the PIDs which has only significance are added into the OCTREE for suface wrap with naming it as FULL WRAP.
• 
• Once the PIDs are incorporated, next is RUN.
• 

Result :

• Thus the surface wrap for the automotive assembly has been performed assigning the target length as 3 mm
• 

Please find the geometry file in this google drive link: https://drive.google.com/file/d/16urFB3JrGkPjET02Y5rCSrlX8QfVIwM8/view?usp=sharing