Week 12:Project 2-Meshing of Rear Wheel Holder challenge

Project Report on Meshing of Car Spare Tyre Plastic Component

Objective-

Meshing of given CAD Model (Car Spare Tyre Plastic Component) and achieve stated Quality criteria using Hypermesh.

CAD Model Image-

Fig.-1

Procedure-

1. Import the provided CAD Model and analyze it properly. If there exist any problem in model through Quick Edit & surface edit panel, rectify the problem and de-feature the some elements as shown in fig. 2.

Fig.-2

2. Now proceed for mid-surface extraction. Fig. 3 Shows the extracted mid surface.

Fig.-3

3. It has been observed that, auto-midsurface is unable to provide proper mid surface so, go with manual mid-surfacing as shown in fig. 4.

Fig.-4

4. Now, analyze the mid-surface properly, if any surface or edge is missing fix it as shown in fig. 5,6 &7and proceed for meshing.

Fig.-5

Fig.-6

Fig.-7

5. Now go to the automesh and enter the element size as 5 and start meshing as shown in fig. 8.

Fig.-8

6. Now, through preferences tab set the mesh criteria mentioned in the challenge as shown in fig. 9.

Fig.-9

7. Now, mesh the object. To maintain the proper mesh flow lines use the option Rebuild mesh. During meshing also pay attention towards element connectivity. If elements are connected properly using equivalence proper connectivity can be achieved.

8. After meshing, go for quality index checking as shown in fig. 10.

Fig.-10

9. If suppose during quality checking some of the elements failed to achieve the quality criteria, through element clean up tool as shown in fig.11, clean up the elements, this will automatically clean up most of the elements.

Fig.-11

10. Even after element clean some elements fail to achieve the criteria, using options such as translate, split element, combine element and by remeshing particular surface quality criteria can be achieved as shown in following figs.

Fig.-12

Fig.-13

Fig.-14

Fig.-15

Fig.-16

Fig.-17

11. Now, assign the material to the model as shown in fig. 18.

Fig.-18

12. Now measure the thickness as shown in fig. 19.

Fig.-19

13. Now create & assign the thickness as shown in fig. 20 & 21.

Fig.-20

Fig.-21

Fig.-22

14. Now check for the normals as shown in fig. 23.

Fig.-23

Result-

As per the given criteria, Car Spare Tyre Plastic Component has been meshed and achieved all quality criteria.