Project 1-Meshing of Rear Wheel Holder challenge
1. AIM: Meshing of Rear Wheel Holder as per the given quality criteria using Hypermesh.
2. OBJECTIVES OF THE PROJECT:
Mesh the Model with below-mentioned quality criteria and assign the thickness.
Target Element Length = 5 Units
| S.N | Quality Criteria | Value |
| 1 | Aspect Ratio | 5 |
| 2 | Skewness | 45 |
| 3 | Warping | 15 |
| 4 | Taper | 0.5 |
| 5 | Min. Length | 2 Units |
| 6 | Max. Length | 8 Units |
| 7 | Min angle Quad | 45 |
| 8 | Max angle Quad | 135 |
| 9 | Min angle Tria | 20 |
| 10 | Max angle Tria | 120 |
| 10 | Tria % | 10 |
3. BODY OF THE CONTENT:
- Visualizing the Component:
- Cleanup the model
As we can see, this model has some defective area and some pin holes are there. so fixing it using a delete and defeaturing command..
At more locations there are defects in the model, as below and corrected it using node edit, surface edit and edge edit command.
- Generating the Mid-Surface & Geometry CLeanup
After cleaning all the defected surfaces, still not generating a proper mid-surface. Tried all extraction options Like, 'offset+planes+sweeps', 'offset+planes', 'offset', 'skin offset', but not gotted surface as required (can see in below image).
Later, using 'surface edit > offset' the remaining surface is generated. see the below image.
can see the topology process is done in the mid-surface in below images.
- Meshing
After geometry cleanup its time to generate the mesh. Before mesh don't forget to set the quality criteria in the model as per given. Here as per the model shape, Mesh is started from its center parts to the periphery direction. At the initial level mesh is generated from one by one area, but as there are many areas , and if I go through one by one, it will consume more time. So, the mesh of the whole component is generated in one step, then used 'rebuild' option to get a better mesh. then quickly check the all area, if found any not eligible mesh, then correct it. see some images as per below.
Then final step is to assign a thickness to the model via creating a property card with 0.75 thickness.
4. LEARNING OUTCOMES
With this model I learned the commands in a new way. While manual offsetting I learn the use of duplicate options in different ways, also I tried the 'untrim' option in 'surface edit'.
5. CONCLUSION:
This model has a only 0.75 thickness, But it has a many feature. Where, it take some more time to generate the good mesh. So, as per me, instead of going one-by-one to generate a mesh, it will consume more time. So, I decided to mesh the whole component in one shot and went through it...
https://drive.google.com/file/d/19-jprqW1WQQ9kBvEhP63BcbuDgsUrMrc/view?usp=drive_link