Challenge

Week 6- Challenge

VVartan Dholariya25 Sept 2020

AIM: To extract the mid surface for each component and mesh the given hood component with the given target element size of 5 mm mentioned quality criteria.

Follow the below-mentioned quality criteria, mesh the component given below and assign thickness:

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
11	Tria %	10

STEPS:

Before working on the model first create a new parameter and criteria files with the target element size of 5 mm and quality criteria as discussed in the objective section. Enable mid surface extraction to auto-extract the mid surface of the components.

Import the geometry by clicking on the import option and select import geometry.
Select the file type to STEP.
Browse and select the file to be imported
Click the import button

The model is imported in the hypermesh and make it fit to the graphical area using F key

As the model consists of the various components we should extract the midsurface for the each components and do the topology clean up

There are five components in the model

Inner_extract_body1

outer_extract_body1

hinge_reinforcement_extract_body1

hinge_reinforcement_extract_body2

Latch_reinforcement_extract_body1

Midsurface extract

For the above five model the midsurface to be extracted and arrange them according

The midsurface is extracted for the each component using the midsurface option from the geometry menu

Now the midsurface as been extracted and renamed and given colour for each component As shown below

Cleanup component

Now the cleanup has to be performed in the midsurface of the each component by checking for any defects in the mid surface by changing the geometry topology mode

Toggle the unnecessary lines by using toggle edge tool & create lines where is necessary by using the split surf node & split surf line tool.

Meshing

After the autocleanup, go to 2D mesh menu and select automesh option, change the element size to 5, element type to mixed and select the mid surface and click mesh to generate the mesh.

Now the mesh as been generated for the components as shown below;