Meshing inner and outer panel of hood using ANSA

Aim:

Meshing the inner and outer panel of hood.

Objective:

For the given component perform a quality check with the given quality criteria.

S.No	Quality Criteria	Value
1	Target/Average length	5
2	Minimum Length	2
3	Maximum Length	7
4	Aspect	3
5	Warpage	15
6	Skewness	45
7	Jacobian	0.7
8	Minimum Quad Angle	45
9	Maximum Quad Angle	135
10	Minimum Tria Angle	30
11	Maximum Tria Angle	120
10	Tria Percentage	15

Procedure to clean geometry:

Import the hood model as a step file format inside the ansa workbench.

Perform a topological check from the cons tab module.

Select the topo option >> select the entire geometry and press middle click.

Now go to checks manager>> select the geometry>> click on execute. Geometrical errors associated with the model will pop up. Select the errors and right click on it and select fix. This will fix all the errors and will clean the geometry.

Procedure to create a mid-surface:

From the property tab select individually one part and perform the mid surfacing.

• Open the property tab>> select the part and perform a topo.
• Go to offset option, select the features with uniform thickness entity>> select the face>> give the offset distance.
• The offset will be created with a red outline boundary>> now perform orientation by clicking on the orient option.
• select setID option and give a name to the mid surface geometry and assign the thickness.

Performing meshing on different mid surfaces:

From the topo module, select the mesh option.

From the perimeter option select length>> select the entire perimeter or macros>> give the target length and click ok. This will distribute the cons evenly on the boundary of the mid surfacing features.

From the quality criteria settings enable the elements % and give the required quality criteria to perform the FEA model.

Latch reinforcement mesh model:

Hing 1 mesh model:

Hinge 2 mesh model:

Outer hood mesh model:

Inner panel mesh model:

Assembly view of hood panel:

Conclusion:

With the required quality criteria, the mesh has been successfully performed. The triangular mesh pattern is kept lower than the quad elements. On different section the mesh has been deployed successfully.