Meshing of Door Inner Panel Challenge

Aim:

To mesh the side door- inner panel geometry of a car with the given quality criteria.

Objective:

Target Element Length = 4 Units

S.No.	Quality Criteria	Value
1	Aspect Ratio 1	5
2	Skewness	45
3	Warping	15
4	Taper	0.5
5	Min. Length	2 Units
6	Max. Length	6 Units
7	Min angle Quad	45
8	Max angle Quad	135
9	Min angle Tria	20
10	Max angle Tria	120
11	Tria %	10

Procedure:

Initially we will be importing the geometry model into Hyper mesh as shown in the image below.

Now, we will be extracting the mid-surface for the component separately and then assign separate collector ID for the mid-surface.

After extracting mid-surface of the component using offset method, we will be cleaning up the geometry and patching up the faces of it.

We will also be toggling off some of the edges using toggle edge option in the component.

There will be some areas which will be having thickness of more than 6 mm, so we need to capture those features separately as shown in the image below.

Now, we will be capturing these features as shown in the images below.

And there will be certain features which need not be captured in the component. Those features are shown in the images below.

The features shown in the below image need not be captured but the holes which are present in it must be captured exactly as it is in the component.

The final meshed model clearing all the quality criteria has been obtained which is shown in the images below.

Since the model has varying thickness on the ribs and some of the faces, we will be assigning separate property ID’s with their respective thickness values.

Conclusion:

We have attained the proper mesh flow for the side door inner panel model which qualifies all the quality criteria having proper mesh flow and has less tria concentration with clearing maximum number of opposite tria and rotating quads.