Challenge

Week 5 Challenge : Surface wrap on Automotive Assembly

WEEK 5: SURFACE WRAP ON AUTOMOTIVE ASSEMBLY

AIM:

To perform geometrical clean-up for the models and merge the models to perform surface wrap with target length of 3 mm.

PROCEDURE:

The engine model is imported to the interface and the unchecked surfaces are deleted using ‘universal delete’ option.
The unwanted surfaces (rings) and the overlapped surfaces are deleted by hiding the important PIDs.
The thinner sections such as belts can also be removed because they cannot capture the mesh properly.
The open holes existing in the model are also covered by creating a new surface.

GEARBOX

The gearbox model is imported and is checked for duplicate surfaces. The duplicate surfaces are deleted using ‘universal delete’ option.
The open surfaces are closed by creating new surfaces using ‘coons’ option.

TRANSMISSION BOX:

The duplicate surfaces are deleted and the open locations are closed by creating surfaces using ‘coons’ option.

The different models are merged one at a time using merge option in ‘file’ menu.

SURFACE WRAPING:

Select ‘Mesh’ deck, and under ‘Elements’ menu and select ‘Wrap’ with constant length. Double click on ‘empty’ and a dialog box appears.
Click on ‘untitled’ and a dialog box appears, enter the target length as 3 mm.
The contents for the surface wrap are assigned by double clicking ‘0’ in contents column. The PIDs are selected (91in this case) and are moved to the octree scenario.
After the contents and the parameters are assigned, select ‘Run’ option to assign the surface wrap on the assembly.
The surface wrap appears to be captured correctly and has 7,39,034 tria elements.

RESULTS AND CONCLUSIONS:

The components of an automotive assembly are performed with a target length of 3 mm.
The quality of the surface wrap is dependent on the target length, smaller the target length, more will be the quality and time taken will be more and vice-versa.

Ship work like this
in your own course.