Week 6-Meshing of Hood Challenge
Aim:- To mesh the hood component.
Objective:- Meshing of hood according to given criteria using Hypermseh.
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 |
Procedure:-
1. Importing:-
Import the given CAD model into Hypermesh.
2. Extraction of Mid surface:-
* In the hood model there are 4 parts inner extract, outer extract, hinge reinforcement extract and latch reinforcement extract.
* We extract the mid surfaces for each part separately.
* For extraction we use auto mid surface tool and we use skin offset for extraction. (Geom-midsurface )
* Midsurface extraction For Latch reinforcement extract
* Midsurface extraction For hinge reinforcement extract
* Midsurface extraction For inner extract
* Midsurface extraction For outre extract
3. Cleanup and Meshing of geometry
1 Latch reinforcement-
* First we make Latch midsurface as a current component. so that whatever i do is save in latch midsurface component.
* Then we Clean the latch midsurface for getting a appropriate mesh according to given criteria.
* For cleaning we use quick edit tools such as toggle and node to node surface split and remove and add points and others as well.
* we toggle the unnecessary lines for get a proper meshing.
* After cleaning the geometry we do mesh, for meshing we use auto mesh tool and give element size as 5 unit. ( 2D - automesh)
* For smooth and proper meshing we use cut geometry method in which we divide the geometry in different section according to give proper mesh.
* For arrange and get proper mesh we use tools such as remesh, rebuilt mesh, smooth, quality index etc.
2. Hinge reinforcement:-
* First we make Hinge midsurface as a current component. so that whatever i do is save in hinge midsurface component.
* For this part we take only one side part for meshing and at the end we reflect this to other side.
* Then we Clean the Hinge midsurface for getting a appropriate mesh according to given criteria.
* For cleaning we use quick edit tools such as toggle and node to node surface split and remove and add points and others as well.
* For smooth and proper meshing we use cut geometry method in which we divide the geometry in different section according to give proper mesh.
* For arrange and get proper mesh we use tools such as remesh, rebuilt mesh, smooth, quality index etc.
* After done meshing of one side we reflect this mesh to other side because the component is symmetric , for reflect we use tool reflect and select the elements and meke duplicate and reflect to desired direction. ( tool - reflect)
3. Inner extract :-
* First we make Inner extract as a current component. so that whatever i do is save in inner mid surface component.
* For this part we take only one side part for meshing and at the end we reflect this to other side.
* Then we Clean the Hinge midsurface for getting a appropriate mesh according to given criteria.
* For cleaning we use quick edit tools such as toggle and node to node surface split and remove and add points and others as well.
* For smooth and proper meshing we use cut geometry method in which we divide the geometry in different section according to give proper mesh.
* For arrange and get proper mesh we use tools such as remesh, rebuilt mesh, smooth, quality index etc.
* In this part we face a problem many times which is warpage issue , so clear the warpage we use translate node tool to clear the warpage. also we use node optimization tool.
* After done meshing of one side we reflect this mesh to other side because the component is symmetric , for reflect we use tool reflect and select the elements and meke duplicate and reflect to desired direction. ( tool - reflect)
3. Outer extract :-
* First we make Outer extract as a current component. so that whatever i do is save in outer midsurface component.
* For this part we take only one side part for meshing and at the end we reflect this to other side.
* Then we Clean the Hinge midsurface for getting a appropriate mesh according to given criteria.
* For cleaning we use quick edit tools such as toggle and node to node surface split and remove and add points and others as well.
* For smooth and proper meshing we use cut geometry method in which we divide the geometry in different section according to give proper mesh.
* For arrange and get proper mesh we use tools such as remesh, rebuilt mesh, smooth, quality index etc.
* After done meshing of one side we reflect this mesh to other side because the component is symmetric , for reflect we use tool reflect and select the elements and meke duplicate and reflect to desired direction. ( tool - reflect)
Conclusion:- In this challenge we clean the different part of hood geometry and mesh them individually. we learn many essential tool for cleaning and meshing the geometry.