Extraction of a Mid Surface and Meshing of a Switch Panel and Floor Panel in ANSA
Objective:
To repair the geometry, and extract the mid surface of the given component and
generate the mesh according to the given quality criterion.
Quality Criteria:
|
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 |
Procedure:
Model 1: Switch Panel
Imported the CAD Model.
Geometry Cleanup & Mid Surface Extraction using following tools panel:
Manual Midsurfacing is done as auto mid does not give good results.
The manual mid surface is generated using the offset option and the middle face
option extend, intersect options are used to join various surfaces generated.
Project, Project cut, and Cut options are used to correct the gaps and geometry to the generated mid surface.
Mid Surface Extracted
Mid Surface Close view of the complex structure on the components.
1. The quality criterion for the mesh is specified as given in the problem and the mesh is generated.
2. The quality of the elements is improved using the reconstruct, re-mesh, split
and swap options. The elements that fail for jacobians are corrected.
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Model: 2
Floor Panel component.
CAD Component
Mid surface
Manual Midsurfacing is done as auto mid does not give good results.
The manual mid surface is generated using the offset option and the middle face
option extend, intersect options are used to join various surfaces generated.
Project, Project cut, and Cut options are used to correct the gaps and geometry to the generated mid surface.
Meshed Components.
1. The quality criterion for the mesh is specified as given in the problem and the mesh is generated.
2. The quality of the elements is improved using the reconstruct, re-mesh, split
and swap options. The elements that fail for jacobians are corrected.
Conclusion
- Learned to extract Mid surface form the complex geometry.
- Learned to work on mesh flow manually using different tools and clean the elements according to quality criteria.