Week 5 Challenge : Surface wrap on Automotive Assembly

AIM :

ERASING all the geometrical errors and delete surfaces which are unwanted for Surface wrap. After clearing geometry,

Merge all the components [Engine, Gearbox and Transmission] and perform surface wrap.

• Target length for Wrap = 3 mm

REQUIRED CASE FOR THE GIVEN MODELS :

• Cleaning up the geometry.
• Using tool - MERGE.
• MESH - SURFACE WRAP.

GEOMETRY CLEAN UP:

1.ENGINE :

• First we have to load the geometry.

• As seen from the above figure (engine), there are lot of unwanted regions of leat interest.
• This unwanted regions must be removed.This can be solved by setting proper view and deleting the unwanted regions by using UNIVERSAL DELETE option.

• These errors can be eliminated by setting a view and then delete.Best practice is to hide the needed PIDs and then select the unnecessary features.

• In this case, triple cons are not considered as an error.After removing all the unwanted materials we can display the full geometry.

• This looks much more cleaner than before.Still got some single cons to remove near the pipe regions.
• We need to delete the all the unwanted surfaces of pipes in the geometry.These kind of overlapped surfaces must be removed.Care muct be taken while deleting those features.
• Once the clean up is done, try to run a geometry check. You might find few warning or penetration errors. Finally the engine geometry looks like as shown below.

2. GEAR BOX :

• After the completion engine geometry next step is to reine the gear box model.First we have to load the geometry.

• Compared to Engine it has lot less errors in the geometry.Initially, run a topo check.Start with hiding necessary PIDs.
• This model does not have many errors.Any way we have to clean up the geometry.

3. TRANSMISSION :

• After the completion of the gear box ,refining of the transmission taken place.First we have to load the geometry.

• At the end we will clean up the transmission.Run a topo check.
• Start by hiding the required components by PIDs.Delete unnecessary features.

MERGING ALL THE THREE COMPONENTS:

• Before performing surface wrap, we need to merge all the three components.
• Navigate to FILE and select MERGE option - select components one by one.
• After merging the geometry looks like.
• Then we need to close all the holes of the whole geometry, to perform the surface wrap perfectly.

• Go to the properties and delete the unwanted PID'S.And we get upto 98 PID's.

SURFACE WRAP:

Surface Wrap :

• Go to mesh deck.
• Navigate to ELEMENTS.Select WRAP and select CONSTANT LENGHT.

• Double click on empty.

• Click on Untitled.
• Target Length = 3 mm.

• Select Mesh in the same dialogue box,set the shell elements as trai, wrap mode as node out of structure and proprtiy assignment as Assign properties from structure.

• After clicking on OK, another box will pop up.

• Double click on CONTENTS 0.
• Select all the PID's.
• After selecting the PID's click on the right arrow, so that all the PID's moves to the right side.
• Then click on ok.Finally click on the RUN, so that surface will gets started.

RESULTS:

After wrapping the surface ,geometry look likes as follows.

• ENGINE wrap surface

• Transmission wrap surface :

Gear Box wrap surface :

CONCLUSION:

• Applied tools to remove unnecessary features, surfaces.Explored MERGE tool option.
• Performed surface wrap on the entire assembly.
• And wrap surface for number of PID's are known ,how to perfom them.

GOOGLE DRIVE LINK FOR ZIP FILE :

https://drive.google.com/file/d/1icsx1jAahcnrAWu9Df5PIEpMAR6WnTrS/view?usp=sharing

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