Week 6- Challenge

MESHING THE COMPONENT(HOOD) ACCORDING TO THE GIVEN QUALITY CRETERIA

Objective: To extract the midsurface for each component and mesh the hood component according the given quality criteria mentioned below.

Target Element Length = 5mm

S.N	Quality Criteria	Value
1	Aspect Ratio	5
2	Skewness	45
3	Warping	15
4	Taper	0.5
5	Min. Length	2mm
6	Max. Length	8mm
7	Min angle Quad	45
8	Max angle Quad	135
9	Min angle Tria	20
10	Max angle Tria	120
10	Tria %	10

Given model image:

Procedure:

Import the model:

To import the model goto File-Import-Geometry-Hood-Import.

Extarcting the midsurface:

As there are 5 components in the given model, we have to extract the midsurface for each component separately.

To extract the midsurface goto Geom-Midsurface-select surface to be extracted-Extract.

Geometry cleanup:

To check any defects, missing surfaces,free edges.. Topology cleanup has to be performed.

To cleanup the component, change the geometry color mode to By typo and goto Geom-autocleanup-select surfaces-target element size 5-autocleanp.

Meshing:

To mesh the component, goto 2D-automesh-set element size as 5, mesh type as mixed-select surfaces to be meshed-mesh.

To mesh the inner and outer extract bodies, meshing can be done for the half part and reflect for the other part using reflect tool since the two bodies are symmetric.

Using the tool Mask, we can mask the other part and mesh on it. To mask the surfaces, goto Tool-mask-select the surfaces to be masked-mask.

To reflect on to the other part, goto Tool-reflect-select elements to be reflected-duplicate the elements-select the component on to which the elements to be reflected-reflect.

Quality Criteia:

To check the quality of the mesh that we performed on the above components, goto 2D-quality index.

First change the criteria settings as per given values.

To change critteria settings, goto Preferences in status bar-criteria file settings.

We can remove those errors by cleanup tools.

Conclusion:

The given Hood component is imported and extracted the midsurface for each component. Topology cleanup is done. Mesh is performed on each component and quality of the mesh is checked by Quality index.