Week 5 Challenge : Surface wrap on Automotive Assembly
Aim:- To perform surface wrap on merged model of Engine,Gearbox and Transmission in ANSA.
Objective:-
1. To Delete unwanted surfaces from Engine, Gearbox,Transmission models.
2. Geometry clean up on Engine, Gearbox,Transmission models.
3. To merge and apply surface wrap with 3mm target length.
Procedure:-
1. External Geometry Clean up of Engine, Gear Box and Transmission body.
2. Merge Engine with Gear Box and Transmission body.
3. Surface Wrap
Tools Used :-
Faces>delete
File>Merge
Element>Wrap
Faces>new
Topo
e.t.c
Geometry Clean up:-
1. Engine :- There are lot of extra /unwanted surfaces as shown below.
Before Geometry Clean up
in Wireframe

In Solid View







The errors are primarily of three types:- single CONS, overlapped surfaces and extra surfaces shaped like ring. Since this is a surface wrap, internal errors do not play a significant role in the wrap generation. Hence, internal errors are not given much importance to remove.
The extra surfaces are removed by visual inspection and by hiding required PIDs. Other surfaces such as belts, chains decreases the final quality of a coarse surface wrap ,so they should be removed as well.
After Geometry Clean up




Fill Hole Faces

Figure with holes filled

2. Gear Box
Before Geometry clean up
in Wireframe

In Solid View



After Geometry Clean up




Fill Hole Faces

Figure with holes filled


3. Transmission
In Wireframe

In Solid View




After Geometry Clean up


Filled Hole View

MERGE
Merge Gear Box,Transmission with Engine
File>Merge > select both the files

Merged View

Surface Wrap
Before Surface_wrap

Mesh Deck>Elements>wrap>constant length






Surface wrapped Geometry

Result :- Merging of Engine,Gear Box,Transmission and Surface Meshing is obtained.
Surface Wrapped Geometry File Link :- Click Here
Conclusion :-
1. External Geometry Clean Up is done.
The errors are primarily of three types:- single CONS, overlapped surfaces and extra surfaces shaped like ring. Since this is a surface wrap, internal errors do not play a significant role in the wrap generation. Hence, internal errors are not given much importance to removed,however, most of internal extra surfaces has also been removed.
2. Learned Surface Meshing from scratch.