Challenge

Week 4 - 2D Meshing for Sheet Metal

AIM:-

To mesh the given CCB assembly model for the given quality criteria.

OBJECTIVE:

CAD MODEL:-

Components Taken for meshing:- ( Cross car beam assembly )

Procedures:

Importing the CAD model into ANSA.
Geometry checks should be performed to the impoted CAD file, as it consists of many errors.
This can be done by the command Tools ---> Checks ---> Geometry.
Now errors are shown as cons, unchecked suefaces, cracks etc.
Some are of the the imperfections are auto-fixed by the ANSA algorithm.
After fixixng the errors, check again for any further errors after performing TOPO to te cad.
IF the geometry is 100% fine then we need to proceede with the next process.

The next step is to set quality criteria and mesh parameters as provided Utilities ---> Quality Criteria ( or by clicking F11 ) .
For this component midsurface is extracted by using a casting Midsurface ---> Casting.
Now a dialouge box will appear, give the minimum thickness of 0.5.
While extruding mid-surface using casting the mid-surface comes along with FE.
Now upload the quality criteria and presentation parameter as requried.

As per the criteria we need to refine and modify mesh as neccesary.
depending upon the error we shuffle between the options off re-construct, re-shape, smooth, slipt , join etc.
Some areas are difficult to adjust, then we can also use Align manager to adjust and fix the error.
Then the Midsurface ---> Align manager is used to match the areas and perimeters which were out of their original midsurface.
Try to keep the tria percentage to as low as possible with a proper mesh flow.
Then set a PID and provide the thickness to the midsurface.

RESULT:-

Ship work like this
in your own course.