Challenge

Week 6-Meshing of Hood Challenge

Aim-

To do a 2D mesh of given Hood assembly as per given data and to do a quality check as per given condition mentioned below,

Procedure-

Intially we have to import the model given to us, for that go to import>>import model and then select file and click on import.
The given hood assembly consists of 4 parts, viz. 1.inner extract, 2. outer extract, 3.hinge reinforcement extract & 4. Latch reinforcement extract

Inner extract Outer extract

Hinge reinforcement extract Latch reinforcement extract

Inner extract-

Make Sure that current selected component is inner extract only.
Now go to delete and remove all the solids present in the active model.
Go to topology view and check for any geomerty errors in the model.
Now go to mid surface and create mid surface.
Now again check for the geometry errors in the generated mid surface and do cleanup if required.
Now we can see in the below snap that the geometry is symetric from all side except the centre postion non highlighted.

Now do auto cleanup and of remaining half model and proceed for meshing with parts having least free edges.

Note- Set quality criteria before auto cleanup as per given in task.

Before meshing do washer split of the for all curved surfaces, split the surfaces to make mesh flow constant.
Now got to 2D and automesh, select element size as 5, mesh type mixed and select surfaces one by one.
After final mesh go to quality check.
check for equivalence, normals etc.

Outer extract-

Make Sure that current selected component is outer extract only.
Now go to delete and remove all the solids present in the active model.
Go to topology view and check for any geomerty errors in the model.
Now go to mid surface and create mid surface.
Now again check for the geometry errors in the generated mid surface and do cleanup if required.
Now we can see in the below snap that the geometry is axis symetric from all side except the centre postion non highlighted.

Now do auto cleanup and of remaining half model and proceed for meshing with parts having least free edges.
Before meshing do washer split of the for all curved surfaces, split the surfaces to make mesh flow constant.
Now got to 2D and automesh, select element size as 5, mesh type mixed and select surfaces one by one.
After final mesh go to quality check.
check for equivalence, normals etc.

Hinge reinforcement extract-

Make Sure that current selected component is hinge reinforcement extract only.
Now go to delete and remove all the solids present in the active model.
Go to topology view and check for any geomerty errors in the model.
Now go to mid surface and create mid surface.
Now again check for the geometry errors in the generated mid surface and do cleanup if required.

Now do auto cleanup and of remaining half model and proceed for meshing with parts having least free edges.
Before meshing do washer split of the for all curved surfaces, split the surfaces to make mesh flow constant.
Now got to 2D and automesh, select element size as 5, mesh type mixed and select surfaces one by one.
After final mesh go to quality check.
check for equivalence, normals etc.

Latch reinforcement extract-

Make Sure that current selected component is hinge reinforcement extract only.
Now go to delete and remove all the solids present in the active model.
Go to topology view and check for any geomerty errors in the model.
Now go to mid surface and create mid surface.
Now again check for the geometry errors in the generated mid surface and do cleanup if required.

Now do auto cleanup and of remaining half model and proceed for meshing with parts having least free edges.
Before meshing do washer split of the for all curved surfaces, split the surfaces to make mesh flow constant.
Now got to 2D and automesh, select element size as 5, mesh type mixed and select surfaces one by one.
After final mesh go to quality check.
check for equivalence, normals etc.

Final Mesh Result-

1. Inner extract

2. Outer extract-

3. Hinge reinforcement extract-

4.Latch reinforcement extract-

Conclusion-

We should first check the geometry errors and clear them manually, also we must toggle lines which are not required and which are very close to each other.
We must take care of lines & Edges by which we are going to create mesh.
We cannot ignore orremove trias at the curved edges and there should not be any back to back trias.
We should maintain mesh flow with trias and quads, by that we can only get a good mesh of any part.

Ship work like this
in your own course.