Ip substrate Project

OBJECTIVE: To model the IP substrate of an automobile by meshing it and clearing it with al the quality errors.

SOFTWARE USED: ANSA 2019

LITERATURE REVIEW:

Thanks to modern plastics technology, instrument panels are often made of acrylonitrile-butadiene-styrene (ABS), ABS/polycarbonate alloys, polycarbonates, polypropylene, modified polyphenylene ether (PPE) and SMA (styrene-maleic anhydride) resins. These plastics allow for complex designs in items such as airbag housings, center stacks for instrument panels, and large, integrated instrument panel pieces.

Wholly integrated single-piece units can be manufactured from all-urethane and all-polypropylene resins. This results in a seamless instrument panel with greatly reduced NVH levels, molded-in color and with significcant cost savings for the manufacturer. Cost effective post-consumer and in-plant recycling are also achievable.

Figure 1: Thinnest IP substrate availible

PROCEDURE:

1. Load the document in ANSA workspace and clear the model of all topo errors which may have incurred due to the transition of the file in ANSA.

2. After we clear the elements of topo errors we need to clear thee geometrical errors like cracks, needle faces, unchecked faces etc.

Figure 2: Geometric checks

3. Now we need to make mid surfaces. As this model has very small surfaces and very different thicknesses we need to do a manual mid surface for all seperately. For this we need to make different PIDs.

Figure 3: Properties created

Figure 4: Mid surface 1

Figure 5: Mid surface 2

Figure 6: Final mid surfaces created

4. Now we move onto the meshing of the component. With the mesh we also need to clear the quality elements of the model. The quality criteria is ass follows:

S.No	Quality Criteria	Value
1	Target/Average length	4
2	Minimum Length	2
3	Maximum Length	6
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

Go to Mesh > Spot Mesh.

This can be done for indivisual Entities or can be done in one go automatically. We need to take care of the mesh flow in all cases.

Figure 7: Spot mesh used on the model

Figure 8: Final mesh with quality errors cleared.

Some of the quality errors were not cleared due to the feature capturing and were left alone for ensuring good mesh flow and good featuring capturing.

RESULTS AND CONCLUTION:

The model has been worked on and all the mesh is fixed of all quality errors.

The link for the file is :

https://drive.google.com/open?id=16vIJoImL4AulvFUUl5IhiSb--NsMO7u9